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(un-manned satellite and other selected)
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|---|---|---|
| Centennial Covers | Centennial-like |
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(un-manned satellite and other selected)
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|---|---|---|
| Centennial Covers | Centennial-like |
This page contains (un-manned satellite and other selected) covers with "Centennial Covers" (and Centennial-like) cachets, mostly on un-manned satellite (or scientific rocket or balloon) launch covers. These covers were produced by the late Edward Hacker of Huntsville AL. Centennial sold its remaining cover collection in 1984, but continued to produce covers for Space Shuttle events.
The covers found in this page are primarily for un-manned satellite (or scientific rocket or balloon) launches or events. Covers for manned and other missions are included if they contain an element of interest to the authors.
Most of the postal items listed below are also found in other pages of the Un-manned Satellite Philately website. However, below are also a few items not found elsewhere in the website because they are not of direct interest to the authors. They are nevertheless included here to make this list of named covers more complete. Such items are highlighted in blue.
The "Centennial-like" section contains covers that have cachets with elements (usually, depictions of rockets or satellites) found in true Centennial cachets, but which lack the descriptive text always found in them, or include such text in a style unknown for them.
Readers who know of additional information or images are invited to contact the authors using the e-mail addresses found at the link at the bottom of this page.
| Launch covers (including anniversary-of-launch covers, and launch-related event covers) (farther below) |
Other postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.) (immediately below) |
|---|---|
| Centennial Covers cachets | Centennial Covers cachets |
| Centennial-like cachets | |
| Summary (of Centennial (and Centennial-like) Covers with generic cachets with multiple satellites depicted) | |
Below is a list of Centennial Covers cachets on postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.).
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Centennial Covers cachets (on (non-launch cover) postal items) | ||||
| United States | 1193 fdc1 (Mi822 fdc1) | (Centennial) cachet on FDC | 1962 | "Project Mercury" |
| United States | 1193 fdc2 (Mi822 fdc2) | (Centennial) cachet (and signature) on FDC | ||
| United States | 1193 fdc3 (Mi822 fdc3) | (Centennial) cachet (different) on FDC (Cape Canaveral FL cancel) | ||
| United States | 1193 fdc4 (Mi822 fdc4) | (Centennial) cachet on FDC (Huntsville AL cancel) | ||
| United States | 1193 cover (Mi822 cover) | (Centennial) cachet on cover | 1962 | "President Kennedy and Vice-President Johnson visit the Marshall Space Flight Center" |
| United States | 1332b fdc (Mi930-931 fdc) | (Centennial) cachet on FDC | 1967 | "United States conquest of space" |
| United States | C76 fdc1 (Mi990 fdc1) | (Centennial yellow earth) cachet on FDC | 1969 | Earthrise image (in stamp); (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, and TIROS/ESSA type depicted in the cachet) |
| United States | C76 fdc2 (Mi990 fdc2) | (Centennial) cachet on FDC | Earthrise image (in stamp); "First man on the Moon - Apollo-11" | |
| United States | 1556 fdc 1557 fdc | (Centennial) cachet on dual-cancel FDC | 1975 1975 | "Pioneer-11" and "Mariner-10" |
| United States | 1557 fdc1 (Mi1170 fdc1) | (Centennial green) cachet on FDC | 1975 | "Mariner-10" |
| United States | 1557 fdc2 (Mi1170 fdc2) | (Centennial red) cachet on FDC (small-font cancel) | ||
| United States | 1557 fdc3 (Mi1170 fdc3) | (Centennial red) cachet on FDC (large-font cancel) | ||
| United States | 1557 fdc4 (Mi1170 fdc4) | (Centennial black) cachet on FDC (also Mariner-10 event cover) | ||
| United States | 1570a fdc (Mi1179-1180 fdc) | (Centennial) cachet on FDC | 1975 | Apollo image (for one of two stamps) |
| United States | 1684 cover (Mi? cover) | (Centennial) cachet on cover | 1977 | "first day Space Shuttle emblem pictorial cancel" |
| United States | C92a fdc (Mi? fdc) | (Centennial) cachet on FDC | 1978 | "75th anniv. powered flight" |
| United States | 2573 fdc (Mi2188 fdc) | (Centennial) cachet on FDC (also Pioneer-11 launch cover) | 1991 | "Pioneer-11" |
Below is a list of Centennial Covers cachets on launch covers (including anniversary-of-launch covers, and launch-related event covers).
| Country | Cancel Date | Cancel Location | Type of Item | Notes on Content |
|---|---|---|---|---|
| Centennial Covers cachets (mostly on un-manned satellite (or scientific rocket or balloon) launch covers) | ||||
| United States | 1962-05-24 | Port Canaveral FL | (Centennial) cachet (and signature) on cover | Mercury-MA-7 launch |
| United States | 1962-08-27 | Port Canaveral FL (hand cancel) | (Centennial) cachet on cover | Mariner-2 launch |
| United States | 1962-08-27 | Port Canaveral FL (machine cancel) | (Centennial) cachet on cover; (also USA 2569 fdc) | |
| United States | 1962-08-27 1962-12-14 | Port Canaveral FL Cape Canaveral FL | (Centennial) cachet on cover | Mariner-2 launch Mariner-2 flyby of Venus |
| United States | 1962-08-27 1962-12-14 | Port Canaveral FL Cape Canaveral FL | (Centennial) cachet (and signature) on cover | |
| United States | 1962-09-18 | Cape Canaveral FL | (Centennial) cachet on cover | TIROS-6 launch |
| United States | 1962-10-18 | Cape Canaveral FL | (Centennial) cachet on cover | Ranger-5 launch |
| United States | 1962-10-28 | Cape Canaveral FL | (Centennial) cachet on cover | Explorer-15 (EPE-C) launch |
| United States | 1962-10-31 | Cape Canaveral FL | (Centennial) cachet on cover | ANNA-2 launch |
| United States | 1962-11-16 | Cape Canaveral FL | (Centennial) cachet on cover | Saturn-1 rocket launch (test mission) |
| United States | 1962-12-14 | Cape Canaveral FL | (Centennial) cachet on cover | Relay-1 launch |
| United States | 1963-02-14 | Cape Canaveral FL (hand cancel) | (Centennial dark-blue earth) cachet on cover | Syncom-1 launch (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, and TIROS/ESSA type depicted) |
| United States | 1963-02-14 | Cape Canaveral FL (machine cancel) | (Centennial dark-blue earth) cachet on cover | |
| United States | 1963-04-03 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | Explorer-17 (AE-A) launch |
| United States | 1963-04-03 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1963-05-07 | Cape Canaveral FL (hand cancel) | (Centennial green and black) cachet on cover | Telstar-2 launch; also "Telstar-1" |
| United States | 1963-05-07 | Cape Canaveral FL (machine cancel) | (Centennial green and black) cachet on cover | |
| United States | 1963-05-07 | Cape Canaveral FL (machine cancel) | (Centennial black) cachet on cover | |
| United States | 1966-03-16 | Cape Canaveral FL | (Centennial) cachet on cover | GATV-8 launch |
| United States | 1963-06-19 | Cape Canaveral FL | (Centennial) cachet on cover | TIROS-7 launch |
| United States | 1963-06-19 | Satellite Beach FL | (Centennial) cachet on cover | |
| United States | 1963-07-26 | Cape Canaveral FL | (Centennial) cachet on cover | Syncom-2 launch |
| United States | 1963-09-18 | Cape Canaveral FL | (Centennial) cachet on cover | Thor-DSV-2 rocket launch |
| United States | 1963-09-28 | Vandenberg AFB, CA | (Centennial) cachet on cover | Transit-5B-1 and Transit-5E-1 launch |
| United States | 1963-10-17 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | US-ERS-12 and Vela-1/2 launch |
| United States | 1963-10-17 | Cape Canaveral FL (machine cancel) | (Centennial) cachet (different) on cover | |
| United States | 1963-11-27 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | Explorer-18 (IMP-A/IMP-1) launch |
| United States | 1963-11-27 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1963-11-27 | Cape Canaveral FL | (Centennial) cachet on cover | Surveyor Pre-Model rocket test launch |
| United States | 1963-12-21 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | TIROS-8 launch |
| United States | 1963-12-21 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1964-01-21 | Cape Canaveral FL (hand cancel) | (Centennial yellow earth) cachet on cover | Relay-2 launch (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, and TIROS/ESSA type depicted) |
| United States | 1964-01-21 | Cape Canaveral FL (machine cancel) | (Centennial yellow earth) cachet on cover | |
| United States | 1964-01-29 | Satellite Beach FL | (Centennial) cachet on cover | Saturn-SA-5 launch |
| United States | 1964-01-29 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1964-01-30 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | Ranger-6 launch |
| United States | 1964-01-30 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1964-03-13 | Cape Canaveral FL | (Centennial) cachet on cover | Blue Scout rocket launch |
| United States | 1964-03-19 | Cape Canaveral FL (machine cancel) | (Centennial black rocket, type-1) cachet on cover | Explorer-S66 launch [failed] (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1964-03-19 | Cape Canaveral FL (hand cancel) | (Centennial black rocket, type-1) cachet on cover | |
| United States | 1964-04-10 | Wallops Island VA | (Centennial) cachet on cover | Scout mission: RAM-B3 rocket launch |
| United States | 1964-04-14 | Cape Canaveral FL | (Centennial) cachet on cover | Atlas-D rocket launch |
| United States | 1964-05-28 | Cape Canaveral FL | (Centennial) cachet on cover | Saturn-SA-6 launch |
| United States | 1964-06-30 | Cape Canaveral FL | (Centennial) cachet on cover | Atlas-Centaur rocket launch [failed] |
| United States | 1964-07-17 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | US-ERS-13 and Vela-3/4 launch |
| United States | 1964-07-17 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1964-07-28 | Cape Canaveral FL | (Centennial) cachet on cover | Ranger-7 launch |
| United States | 1964-07-28 | Cape Canaveral FL | (Centennial, with sticker) cachet on cover | |
| United States | 1964-08-19 | Cape Canaveral FL | (Centennial black earth) cachet on cover | Syncom-3 launch (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, and TIROS/ESSA type depicted) |
| United States | 1964-09-01 | Cape Canaveral FL | (Centennial red rocket, type-1) cachet on cover | Transtage-1 launch (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1964-09-05 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | OGO-1 launch |
| United States | 1964-09-05 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1964-09-18 | Cape Canaveral FL | (Centennial) cachet on cover | Saturn-SA-7 launch |
| United States | 1964-10-04 | Cape Canaveral FL | (Centennial) cachet on cover, also (hand-written) insert | Explorer-21 (IMP-B/IMP-2) launch |
| United States | 1964-10-28 | Cape Canaveral FL | (Centennial) cachet on cover | Thor-SLV-2 Project ASSET rocket launch |
| United States | 1964-11-28 | Cape Canaveral FL | (Centennial) cachet on cover | Mariner-4 launch |
| United States | 1964-12-10 | Cape Canaveral FL | (Centennial) cachet on cover | Transtage-2 launch |
| United States | 1964-12-21 | Cape Canaveral FL (hand cancel) | (Centennial red earth) cachet on cover | Explorer-26 (EPE-D) launch (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, and TIROS/ESSA type depicted) |
| United States | 1964-12-21 | Cape Canaveral FL (machine cancel) | (Centennial red earth) cachet on cover | |
| United States | 1965-01-22 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | TIROS-9 launch |
| United States | 1965-01-22 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1965-02-03 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | OSO-2 launch |
| United States | 1965-02-03 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1965-02-11 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | LES-1 launch |
| United States | 1965-02-11 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1965-02-16 | Cape Canaveral FL | (Centennial) cachet on cover | Pegasus-1 launch |
| United States | 1965-02-17 | Cape Canaveral FL | (Centennial) cachet on cover | Ranger-8 launch |
| United States | 1965-03-23 | Cape Canaveral FL | (Centennial) cachet on cover | Gemini-3 launch |
| United States | 1965-04-06 | Cape Canaveral FL | (Centennial grey earth) cachet on cover | Early Bird (Intelsat-1) launch (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, and TIROS/ESSA type depicted) |
| United States | 1965-04-29 | Wallops Island VA | (Centennial) cachet on cover | Explorer-27 (BE-C) launch |
| United States | 1965-05-25 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | Pegasus-2 launch |
| United States | 1965-05-25 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1965-06-03 | Cape Canaveral FL | (Centennial) cachet on cover | Gemini-4 launch |
| United States | 1965-06-18 | Cape Canaveral FL | (Centennial) cachet on cover | Transtage-5 launch |
| United States | 1965-07-20 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | US-ERS-17 and Vela-5/6 launch |
| United States | 1965-07-20 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1965-07-30 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | Pegasus-3 launch |
| United States | 1965-07-30 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1965-08-11 | Cape Canaveral FL | (Centennial) cachet on cover | Surveyor-SD2 launch |
| United States | 1965-08-21 | Cape Canaveral FL | (Centennial) cachet on cover | Gemini-5 launch ("Rendezvous Evaluation Pod" (REP)) |
| United States | 1965-10-15 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | OV2-1 and LCS-2 launch [failed] |
| United States | 1965-10-15 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1965-10-25 | Cape Canaveral FL | (Centennial) cachet on cover | GATV-6 launch |
| United States | 1965-11-06 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | Explorer-29 (GEOS-1) launch |
| United States | 1965-11-06 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1965-11-19 | Wallops Island VA | (Centennial black rocket, type-1) cachet on cover | Explorer-30 (SolRad-8) launch (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1965-12-04 | Cape Canaveral FL | (Centennial) cachet on cover | Gemini-7 launch |
| United States | 1965-12-16 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | Pioneer-6 launch |
| United States | 1965-12-16 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1965-12-21 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | LES-3/4 and OV2-3 and OSCAR-4 launch |
| United States | 1965-12-21 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1966-02-03 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | ESSA-1 launch |
| United States | 1966-02-03 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1966-02-26 | Cape Canaveral FL | (Centennial) cachet on cover | Saturn-1B (Apollo-Saturn AS-201) rocket launch |
| United States | 1966-02-28 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | ESSA-2 launch |
| United States | 1966-02-28 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1966-04-08 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | OAO-1 launch |
| United States | 1966-04-08 | Cape Canaveral FL (hand cancel) | (Centennial and black rubber-stamp) cachets on cover | OAO-1 launch (not "Explorer-31", as in rubber-stamp cachet) |
| United States | 1966-04-08 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | Surveyor-SD3 launch |
| United States | 1966-04-08 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1966-05-17 | Cape Canaveral FL | (Centennial) cachet on cover | GATV-9 launch [failed] |
| United States | 1966-05-25 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | Explorer-32 (AE-B) launch |
| United States | 1966-05-25 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1966-05-30 | Cape Canaveral FL | (Centennial) cachet on cover | Surveyor-1 launch |
| United States | 1966-06-01 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | ATDA launch |
| United States | 1966-06-01 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1966-06-07 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | OGO-3 launch |
| United States | 1966-06-07 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1966-06-10 | Wallops Island VA | (Centennial) cachet on cover | OV3-4 launch |
| United States | 1966-06-16 | Cape Canaveral FL (hand cancel) | (Centennial) cachet (and black rubber-stamp note) on cover | IDCSP-1/7 and GGTS-1 launch |
| United States | 1966-06-16 | Cape Canaveral FL (hand cancel) | (Centennial) cachet (and black typed note) on cover | |
| United States | 1966-06-16 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1966-07-01 | Cape Canaveral FL | (Centennial) cachet on cover | Explorer-33 (IMP-D/AIMP-1) launch |
| United States | 1966-07-05 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | Apollo-Saturn AS-203 launch |
| United States | 1966-07-05 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1966-07-18 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | GATV-10 and Gemini-10 separate launches |
| United States | 1966-07-18 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1966-07-18 | Cape Canaveral FL (hand cancel) | (Centennial?) cachet (different) on cover | |
| United States | 1966-07-18 | Cape Canaveral FL (machine cancel) | (Centennial?) cachet on cover | |
| United States | 1966-08-10 | Cape Canaveral FL | (Centennial) cachet on cover | Lunar Orbiter-1 launch |
| United States | 1966-08-17 | Cape Canaveral FL | (Centennial black rocket, type-1) cachet on cover | Pioneer-7 launch (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1966-08-17 | Cape Canaveral FL | (Centennial grey rocket, type-1) cachet on cover | |
| United States | 1966-08-25 | Cape Canaveral FL | (Centennial) cachet on cover | Apollo-Saturn AS-202 (Apollo-3) rocket launch |
| United States | 1966-08-26 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | IDCSP-8/14 and GGTS-2 launch [failed] |
| United States | 1966-08-26 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1966-09-20 | Cape Canaveral FL | (Centennial) cachet on cover | Surveyor-2 launch |
| United States | 1966-10-26 | Cape Canaveral FL | (Centennial) cachet on cover | Surveyor-SD4 launch |
| United States | 1966-10-27 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-2-1 launch [partial failure] |
| United States | 1966-11-03 | Cape Canaveral FL | (Centennial) cachet on cover | OV4-3, OV4-1R, OV4-1T, and OV1-6 launch |
| United States | 1966-11-07 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | Lunar Orbiter-2 launch |
| United States | 1966-11-07 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1966-11-11 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | GATV-12 (and Gemini-12) launch |
| United States | 1966-11-11 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1966-11-11 | Cape Canaveral FL | (Centennial) cachet (different) on cover | |
| United States | 1966-12-07 | Cape Canaveral FL | (Centennial) cachet on cover | ATS-1 launch |
| United States | 1966-12-14 | Cape Canaveral FL | (Centennial) cachet on cover | Biosatellite-1 launch |
| United States | 1967-01-11 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-2-2 launch |
| United States | 1967-01-18 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | IDCSP-8/15 launch |
| United States | 1967-01-18 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1967-01-24 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | Six Nike-Tomahawk rocket launches |
| United States | 1967-01-24 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1967-02-05 | Cape Canaveral FL | (Centennial) cachet on cover | Lunar Orbiter-3 launch |
| United States | 1967-03-08 | Cape Canaveral FL | (Centennial) cachet on cover | OSO-3 launch |
| United States | 1967-03-23 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | Intelsat-2-3 launch |
| United States | 1967-03-23 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1967-03-31 | Wallops Island VA | (Centennial) cachet on cover | Nike-Tomahawk rocket launch |
| United States | 1967-04-06 | Cape Canaveral FL | (Centennial) cachet on cover | ATS-2 launch |
| United States | 1967-04-17 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | Surveyor-3 launch |
| United States | 1967-04-17 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1967-04-20 | Vandenberg AFB, CA | (Centennial) cachet on cover | ESSA-5 launch |
| United States | 1967-04-28 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | OV5-1/3 and US-ERS-18 and Vela-7/8 launch |
| United States | 1967-04-28 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1967-05-05 | Vandenberg AFB, CA | (Centennial) cachet on cover | Ariel-3 launch |
| United States | 1967-05-05 | Cape Canaveral FL | (Centennial) cachet on cover | Lunar Orbiter-4 launch |
| United States | 1967-05-24 | Vandenberg AFB, CA | (Centennial) cachet on cover | Explorer-34 (IMP-F/IMP-4) launch |
| United States | 1967-05-29 | Vandenberg AFB, CA | (Centennial) cachet on cover | ESRO-2A launch [failed] |
| United States | 1967-07-01 | Cape Canaveral FL | (Centennial orange rocket, type-1) cachet on cover | IDCSP-16/19 and DODGE and LES-5 launch (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1967-07-14 | Cape Canaveral FL | (Centennial) cachet on cover | Surveyor-4 launch |
| United States | 1967-07-19 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | Explorer-35 (IMP-E/AIMP-2) launch |
| United States | 1967-07-19 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1967-07-19 | Cape Canaveral FL (machine cancel) | (Centennial) cachet (slightly different) on cover | |
| United States | 1967-07-28 | Vandenberg AFB, CA | (Centennial) cachet on cover | OGO-4 launch |
| United States | 1967-08-01 | Cape Canaveral FL | (Centennial) cachet on cover | Lunar Orbiter-5 launch |
| United States | 1967-09-07 | Kennedy Space Center FL | (Centennial) cachet on cover | Biosatellite-2 launch |
| United States | 1967-09-07 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1967-09-08 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | |
| United States | 1967-09-08 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1967-09-28 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-2-4 launch |
| United States | 1967-10-18 | Kennedy Space Center FL | (Centennial black Orbiting Observatories and black text) cachet on cover | OSO-4 launch (but OAO-2, OSO-1/6 type, and OGO-1/6 type depicted) |
| United States | 1967-10-18 | Cape Canaveral FL | (Centennial black Orbiting Observatories and black text) cachet on cover | |
| United States | 1967-10-19 | Wallops Island VA | (Centennial) cachet on cover | Scout mission: RAM-C1 rocket launch |
| United States | 1967-11-05 | Kennedy Space Center FL | (Centennial red earth) cachet on cover | ATS-3 launch (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, and TIROS/ESSA type depicted) |
| United States | 1967-11-06 | Cape Canaveral FL (hand cancel) | (Centennial red earth) cachet on cover | |
| United States | 1967-11-06 | Cape Canaveral FL (machine cancel) | (Centennial red earth) cachet on cover | |
| United States | 1967-11-07 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | Surveyor-6 launch |
| United States | 1967-11-07 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1967-11-09 | Cape Canaveral FL | (Centennial) cachet on cover | Surveyor-6 lunar landing |
| United States | 1967-11-09 | Cape Canaveral FL | (Centennial) cachet on cover | Apollo-4 launch (test and photographic mission7) |
| United States | 1967-11-10 | Vandenberg AFB, CA | (Centennial) cachet on cover | ESSA-6 launch |
| United States | 1967-12-13 | Kennedy Space Center FL | (Centennial) cachet on cover | Pioneer-8 and TETR-1 launch |
| United States | 1967-12-13 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1968-01-07 | Cape Canaveral FL | (Centennial) cachet on cover | Surveyor-7 launch |
| United States | 1968-01-09 | Cape Canaveral FL | (Centennial) cachet on cover | Surveyor-7 lunar landing |
| United States | 1968-01-11 | Vandenberg AFB, CA | (Centennial brown rocket, type-2 and black text) cachet on cover | Explorer-36 (but GEOS-2) launch (but Transit-2A, Pioneer-5/Explorer-61, TIROS/ESSA type, and Vanguard-2 depicted) |
| United States | 1968-01-31 | Cape Canaveral FL | (Centennial) cachet on cover | 10th anniv. Explorer-1 launch |
| United States | 1968-03-04 | Cape Canaveral FL | (Centennial yellow Orbiting Observatories and black text) cachet on cover | OGO-5 launch (but OAO-2, OSO-1/6 type, and OGO-1/6 type depicted) |
| United States | 1968-03-05 | Wallops Island VA | (Centennial) cachet on cover | Explorer-37 (SolRad-9) launch |
| United States | 1968-04-04 | Cape Canaveral FL | (Centennial) cachet on cover | Apollo-4 rocket launch (test for various mission systems) |
| United States | 1968-05-16 | Vandenberg AFB, CA | (Centennial) cachet on cover | ESRO-2B launch |
| United States | 1968-06-13 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | IDCSP-20/27 launch |
| United States | 1968-06-13 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1968-07-04 | Vandenberg AFB, CA | (Centennial) cachet on cover | Explorer-38 (RAE-1) launch |
| United States | 1968-08-06 | Cape Canaveral FL | (Centennial) cachet on cover | Canyon-1 launch ("secret spy-in-sky satellite") |
| United States | 1968-08-06 | Cape Canaveral FL | (Centennial) cachet (different) on cover | Canyon-1 launch |
| United States | 1968-08-08 | Vandenberg AFB, CA | (Centennial) cachet on cover | Explorer-39 (ADE-C) and Explorer-40 (Injun-5) launch |
| United States | 1968-08-11 | Cape Canaveral FL | (Centennial) cachet on cover | ATS-4 launch [partial failure] |
| United States | 1968-08-16 | Vandenberg AFB, CA | (Centennial) cachet on cover | ESSA-7 launch |
| United States | 1968-08-16 | Vandenberg AFB, CA | (Centennial black rocket, type-1) cachet on cover | OV5-8 and LCS-3 and SECOR-11/12 and Orbiscal-1 and Gridsphere-1/2 and Rigidsphere and Mylar Balloon and 3 others launch [failed] (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1968-09-19 | Cape Canaveral FL (machine cancel) | (Centennial) cachet on cover | Intelsat-3-1 launch [failed] (not "four military research spacecraft...including Lincoln Experimental Satellite" for LES-6 and OV2-5 and OV5-2/4 as in cachet)3 |
| United States | 1968-09-19 | Cape Canaveral FL (hand cancel) | (Centennial) cachet on cover | |
| United States | 1968-09-26 | Cape Canaveral FL | (Centennial) cachet on cover | LES-6 and OV2-5 and OV5-2/4 launch (not "Atlantic-3" / Intelsat-3-1 [failed], as in cachet)3 |
| United States | 1968-11-08 | Cape Canaveral FL | (Centennial black and blue) cachet on cover | Pioneer-9 and TETR-2 launch |
| United States | 1968-11-08 | Cape Canaveral FL | (Centennial black) cachet on cover | |
| United States | 1968-11-08 | Cape Canaveral FL | (Centennial) cachet (different) on cover | |
| United States | 1968-12-07 | Cape Canaveral FL (machine cancel) | (Centennial red Orbiting Observatories and black text) cachet on cover | OAO-2 launch (also OSO-1/6 type and OGO-1/6 type depicted) |
| United States | 1968-12-07 | Cape Canaveral FL (hand cancel) | (Centennial red Orbiting Observatories and black text) cachet on cover | OAO-2 launch (also OSO-1/6 type and OGO-1/6 type depicted) |
| United States | 1968-12-15 | Vandenberg AFB, CA | (Centennial) cachet on cover | ESSA-8 launch |
| United States | 1968-12-19 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-3-2 launch |
| United States | 1969-01-22 | Cape Canaveral FL | (Centennial) cachet on cover | OSO-5 launch |
| United States | 1969-01-29 | Vandenberg AFB, CA | (Centennial) cachet on cover | ISIS-1 launch |
| United States | 1969-02-06 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-3-3 launch |
| United States | 1969-02-06 | Cape Canaveral FL | (Centennial) cachet (different) on cover | |
| United States | 1969-02-09 | Cape Canaveral FL | (Centennial) cachet on cover | TACOMSAT-1 (spelled "TACCOMSAT") launch |
| United States | 1969-02-25 | Cape Canaveral FL | (Centennial) cachet on cover | Mariner-6 launch |
| United States | 1969-02-26 | Cape Canaveral FL | (Centennial) cachet on cover | ESSA-9 launch |
| United States | 1969-03-27 | Cape Canaveral FL | (Centennial) cachet on cover | Mariner-7 launch |
| United States | 1969-03-27 | Cape Canaveral FL | (Centennial) cachet (different) on cover | |
| United States | 1969-03-27 | Kennedy Space Center FL | (Centennial red-orange rocket, type-1 and blue text) cachet on cover | Mariner-7 launch (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1969-04-13 | Vandenberg AFB, CA | (Centennial brown rocket, type-2 and black text) cachet on cover | Nimbus-3 and SECOR-13 launch (but Transit-2A, Pioneer-5/Explorer-61, TIROS/ESSA type, and Vanguard-2 depicted) |
| United States | 1969-05-22 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-3-4 launch |
| United States | 1969-05-22 | Cape Canaveral FL | (Centennial) cachet (different) on cover | |
| United States | 1969-05-22 | Cape Canaveral FL (hand cancel) | (Centennial red rocket, type-1) cachet on cover | Intelsat-3-4 launch (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1969-05-22 | Cape Canaveral FL (machine cancel) | (Centennial red rocket, type-1 and magenta rubber-stamp) cachet on Intelsat-3-4 launch cover | |
| United States | 1969-05-23 | Cape Canaveral FL | (Centennial) cachet on cover | OV5-5/6/9 and Vela-9/10 launch |
| United States | 1969-06-05 | Vandenberg AFB, CA | (Centennial) cachet on cover | OGO-6 launch |
| United States | 1969-06-21 | Vandenberg AFB, CA | (Centennial red rocket, type-1) cachet on cover | Explorer-41 (IMP-G/IMP-5) launch (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1969-06-29 | Cape Canaveral FL | (Centennial) cachet on cover | Biosatellite-3 launch |
| United States | 1969-07-26 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-3-5 launch [partial failure] |
| United States | 1969-07-29 | Cape Canaveral FL | (Centennial) cachet on cover | Mariner-6 approaches Mars |
| United States | 1969-08-05 | Cape Canaveral FL | (Centennial) cachet on cover | Mariner-7 "Mars flyby" |
| United States | 1969-08-09 | Cape Canaveral FL | (Centennial) cachet on cover | OSO-6 and PAC-1 launch |
| United States | 1969-08-12 | Cape Canaveral FL | (Centennial) cachet on cover | ATS-5 launch |
| United States | 1969-08-28 | Cape Canaveral FL | (Centennial yellow earth) cachet on cover | Pioneer-E and TETR-3 launch [failed] (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, and TIROS/ESSA type depicted) |
| United States | 1969-10-01 | Lompoc CA, Vandenberg AFB | (Centennial) cachet on cover | ESRO-1B launch |
| United States | 1969-11-07 | Lompoc CA, Vandenberg AFB | (Centennial) cachet on cover | Azur launch |
| United States | 1969-11-07 | Lompoc CA, Vandenberg AFB | (Centennial) cachet (and signature) on cover | |
| United States | 1969-11-20 | Cape Canaveral FL | (Centennial) cachet on cover | Surveyor-3 Apollo-12 astronaut encounter |
| United States | 1969-11-22 | Cape Canaveral FL | (Centennial) cachet on cover | Skynet-1A launch |
| United States | 1970-01-15 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-3-6 launch |
| United States | 1970-01-22 1970-01-23 | Vandenberg AFB, CA Lompoc CA, Vandenberg AFB | (Centennial) cachet on cover | TIROS-M and OSCAR-5 launch |
| United States | 1970-01-23 | Lompoc CA, Vandenberg AFB | (Centennial) cachet on cover | |
| United States | 1970-02-03 | Lompoc CA, Vandenberg AFB | (Centennial) cachet on cover | SERT-2 launch |
| United States | 1970-03-07 | Wallops Island VA | (Centennial) cachet on cover | Twenty-five sounding rockets of various types |
| United States | 1970-03-21 | Cape Canaveral FL | (Centennial) cachet on cover | NATO-2A launch ("NATO-1" in text) |
| United States | 1970-04-08 | Lompoc CA, Vandenberg AFB | (Centennial) cachet on cover | Nimbus-4 and TOPO-1 launch |
| United States | 1970-04-08 | Cape Canaveral FL | (Centennial) cachet on cover | Vela-11/12 launch |
| United States | 1970-04-22 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-3-7 launch |
| United States | 1970-06-19 | Cape Canaveral FL | (Centennial) cachet on cover | Rhyolite-1 launch ("secret spy satellite") |
| United States | 1970-07-24 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-3-8 launch |
| United States | 1970-08-19 | Cape Canaveral FL | (Centennial) cachet on cover | Skynet-1B launch |
| United States | 1970-09-30 | Wallops Island VA | (Centennial) cachet on cover | Scout mission: RAM-C rocket launch |
| United States | 1970-10-09 | Wallops Island VA | (Centennial) cachet on cover | Castor rocket launch |
| United States | 1970-11-06 | Cape Canaveral FL | (Centennial) cachet on cover | DSP-1 launch ("secret" and "spy satellite") |
| United States | 1970-11-09 | Wallops Island VA | (Centennial) cachet on cover | OFO-1 and RM-1 launch |
| United States | 1970-11-30 | Cape Canaveral FL | (Centennial) cachet on cover | OAO-B launch [failed] |
| United States | 1970-11-30 | Cape Canaveral FL | (Centennial yellow earth) cachet on cover | OAO-B launch [failed] (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, TIROS/ESSA type depicted) |
| United States | 1970-12-11 | Lompoc CA, Vandenberg AFB | (Centennial) cachet on cover | NOAA-1 and CEP-1 launch |
| United States | 1971-01-26 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-4-2 launch |
| United States | 1971-02-03 | Cape Canaveral FL | (Centennial grey earth) cachet on cover | NATO-2B launch ("NATO-B" in text) (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, and TIROS/ESSA type depicted) |
| United States | 1971-03-13 | Cape Canaveral FL | (Centennial) cachet on cover | Explorer-43 (IMP-H/IMP-6) launch |
| United States | 1971-03-31 | Lompoc CA, Vandenberg AFB | (Centennial) cachet on cover | ISIS-2 launch |
| United States | 1971-05-05 | Cape Canaveral FL | (Centennial) cachet on cover | DSP-2 launch ("secret spy satellite") |
| United States | 1971-05-08 | Cape Canaveral FL | (Centennial? brown) cachet on cover | Mariner-8 launch [failed] |
| United States | 1971-07-09 | Wallops Island VA | (Centennial) cachet on cover | Explorer-44 (SolRad-10) launch |
| United States | 1971-07-20 | Cape Canaveral FL | (Centennial) cachet on cover | 2nd anniv. Apollo-11 Moonwalk |
| United States | 1971-08-16 | Wallops Island VA | (Centennial) cachet on cover, also insert | Éole launch |
| United States | 1971-09-10 | Huntsville AL | (Centennial) cachet on cover | Stratoscope-II balloon launch |
| United States | 1971-09-21 | Wallops Island VA | (Centennial) cachet on cover | Scout rocket launch |
| United States | 1971-09-21 | Wallops Island VA | (Centennial) cachet (and "cancel delayed" rubber-stamp) on cover | |
| United States | 1971-09-29 | Kennedy Space Center FL | (Centennial brown image and black text) cachet on cover | OSO-7 and TETR-4 launch |
| United States | 1971-09-29 | Cape Canaveral FL | (Centennial brown image and black text) cachet on cover | |
| United States | 1971-09-29 | Cape Canaveral FL | (Centennial black image and black text) cachet on cover | |
| United States | 1971-09-29 | Cape Canaveral FL | (Centennial blue) cachet on cover | |
| United States | 1971-09-29 | Kennedy Space Center FL | (Centennial blue) cachet on cover | |
| United States | 1971-10-21 | Lompoc CA, Vandenberg AFB | (Centennial) cachet on cover | ITOS-B launch [failed] |
| United States | 1971-11-03 | Kennedy Space Center FL | (Centennial) cachet on cover | DSCS-2-1/2 launch |
| United States | 1971-11-03 | Kennedy Space Center FL | (Centennial and black rubber-stamp) cachet on cover | |
| United States | 1971-11-03 | Cape Canaveral FL | (Centennial blue) cachet on cover | |
| United States | 1971-11-13 | Kennedy Space Center FL | (Centennial) cachet on cover | Mariner-9 entry into Mars orbit |
| United States | 1971-11-13 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1971-11-13 | Mars PA | (Centennial? green rubber-stamp) cachet on cover | |
| United States | 1971-12-05 | Cape Canaveral FL | (Centennial) cachet on cover | Canyon-4 launch [failed] ("secret spy satellite") |
| United States | 1971-12-06 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1971-12-06 | Kennedy Space Center FL | (Centennial and black rubber-stamp) cachet on cover | |
| United States | 1971-12-11 | Lompoc CA, Vandenberg AFB | (Centennial) cachet on cover | Ariel-4 launch |
| United States | 1971-12-11 | Lompoc CA, Vandenberg AFB | (Centennial) cachet (and signature) on cover | |
| United States | 1971-12-20 | Kennedy Space Center FL | (Centennial) cachet on cover | Intelsat-4-3 launch |
| United States | 1971-12-20 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1972-01-24 | Kennedy Space Center FL | (Centennial) cachet on cover | Intelsat-4-4 launch |
| United States | 1972-01-24 | Kennedy Space Center FL | (Centennial and black rubber-stamp) cachet on cover | |
| United States | 1972-01-31 | Lompoc CA, Vandenberg AFB | (Centennial grey rocket, type-2 and red text) cachet on cover | HEOS-2 launch (but Transit-2A, Pioneer-5/Explorer-61, TIROS/ESSA type, and Vanguard-2 depicted) |
| United States | 1972-02-16 | Lompoc CA, Vandenberg AFB | (Centennial) cachet on cover | Jumpseat-2 launch [failed] ("secret satellite") |
| United States | 1972-03-01 | Cape Canaveral FL | (Centennial) cachet on cover | DSP-3 launch |
| United States | 1972-03-03 | Cape Canaveral FL | (Centennial) cachet on cover | Pioneer-10 launch |
| United States | 1972-03-03 | Cape Canaveral FL | (Centennial) cachet (and signature) on cover | |
| United States | 1972-03-11 | Lompoc CA, Vandenberg AFB | (Centennial) cachet on cover | ESRO-TD1A launch |
| United States | 1972-03-20 | Wallops Island VA | (Centennial) cachet on cover | Thirty rocketsonde meteorological rockets launched |
| United States | 1972-03-24 | Lompoc CA, Vandenberg AFB | (Centennial black rocket, type-1) cachet on cover | DSAP-5B-F2 / DMSP-5B-F2 launch ("secret satellite") (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1972-05-20 | Vandenberg AFB, CA | (Centennial) cachet on cover | KH8-35 launch [failed] ("secret satellite") |
| United States | 1972-05-25 | Vandenberg AFB, CA | (Centennial) cachet on cover | KH4B-17 launch ("secret satellite") |
| United States | 1972-05-25 | Vandenberg AFB, CA | (Centennial) cachet (no rocket image) on cover | |
| United States | 1972-06-13 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-4-5 launch |
| United States | 1972-06-13 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1972-07-23 | Vandenberg AFB, CA | (Centennial) cachet on cover | Landsat-1 launch |
| United States | 1972-07-07 | Vandenberg AFB, CA | (Centennial) cachet on cover | KH9-3 and P11-4425 launch ("secret spy satellite") |
| United States | 1972-08-21 | Kennedy Space Center FL | (Centennial) cachet on cover | OAO-3 launch |
| United States | 1972-09-01 | Vandenberg AFB, CA | (Centennial) cachet on cover | KH8-36 launch |
| United States | 1972-09-22 | Cape Canaveral FL | (Centennial) cachet on cover | Explorer-47 (IMP-I/IMP-7) launch |
| United States | 1972-09-25 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1972-10-15 | Vandenberg AFB, CA | (Centennial) cachet on cover | NOAA-2 and OSCAR-6 launch |
| United States | 1972-11-09 | Cape Canaveral FL | (Centennial) cachet on cover | Anik-A1 launch |
| United States | 1972-11-21 | Vandenberg AFB, CA | (Centennial) cachet on cover | ESRO-4 launch |
| United States | 1972-12-10 | Vandenberg AFB, CA | (Centennial) cachet on cover | Nimbus-5 launch |
| United States | 1972-12-11 | Kennedy Space Center FL | (Centennial) cachet on cover | "Apollo-17 first EVA" |
| United States | 1972-12-17 | Cape Canaveral FL | (Centennial) cachet on cover | "Apollo-17 spacewalk" |
| United States | 1972-12-16 | Vandenberg AFB, CA | (Centennial) cachet on cover | Aeros-1 launch |
| United States | 1973-01-09 | Cape Canaveral FL | (Centennial) cachet on cover | Skylab-2 pre-launch: "preliminary roll out" |
| United States | 1973-01-24 | Huntsville AL | (Centennial) cachet on cover, and insert | Skylab-2 pre-launch: "Conrad and Weitz" (part of the Skylab-2 crew) and backup astronauts "practice 'space walks'" |
| United States | 1973-03-06 | Cape Canaveral FL | (Centennial) cachet on cover | Rhyolite-2 launch |
| United States | 1973-04-05 | Kennedy Space Center FL | (Centennial) cachet on cover | Pioneer-11 launch |
| United States | 1973-04-06 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1973-04-06 1991-10-01 | Cape Canaveral FL Long Beach CA | (Centennial) cachet on cover | Pioneer-11 launch USA 2573 FDC |
| United States | 1973-04-16 | Cape Canaveral FL | (Centennial) cachet on cover | Skylab-1 pre-launch: "rollout" |
| United States | 1973-05-14 | Cape Canaveral FL | (Centennial) cachet on cover | Skylab-1 launch |
| United States | 1973-05-25 | Cape Canaveral FL | (Centennial) cachet on cover | Skylab-2 launch |
| United States | 1973-07-28 | Cape Canaveral FL | (Centennial) cachet on cover, and insert | Skylab-3 launch and docking |
| United States | 1973-07-28 | Kennedy Space Center FL | (Centennial) cachet on cover | Skylab-3 launch |
| United States | 1973-08-06 | Cape Canaveral FL | (Centennial red rocket, type-1) cachet cachet on cover | Skylab-3 EVA by Astronauts Garriott and Lousma (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1973-08-06 | Cape Canaveral FL | (Centennial) cachet on cover, and insert | Skylab-3 EVA by astronauts Garriot and Lousma "to install a new sun-shield on the damaged space laboratory" |
| United States | 1973-08-24 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-4-7 launch |
| United States | 1973-08-24 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1973-08-24 | Kennedy Space Center FL | (Centennial and black rubber-stamp) cachet on cover | |
| United States | 1973-09-25 | Kennedy Space Center FL | (Centennial) cachet on cover | Skylab-3 splashdown/recovery |
| United States | 1973-10-26 | Kennedy Space Center FL | (Centennial) cachet on cover | Explorer-50 (IMP-J/IMP-8) launch |
| United States | 1973-10-26 | Kennedy Space Center FL | (Centennial and black rubber-stamp) cachet on cover | |
| United States | 1973-10-26 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1973-10-26 | Cape Canaveral FL | (Centennial and black rubber-stamp) cachet on cover | |
| United States | 1973-11-16 | Kennedy Space Center FL | (Centennial) cachet on cover | Skylab-4 launch, "rendezvous and docking" |
| United States | 1973-11-16 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1973-12-03 | Cape Canaveral FL | (Centennial) cachet on cover | Pioneer-10 flyby of Jupiter |
| United States | 1973-12-15 | Vandenberg AFB, CA | (Centennial) cachet on cover | Explorer-51 (AE-C) launch |
| United States | 1973-12-25 | Cape Canaveral FL | (Centennial) cachet on cover | Skylab-4 "Christmas space walk" |
| United States | 1974-02-05 | Cape Canaveral FL | (Centennial) cachet on cover | Mariner-10 flyby of Venus |
| United States | 1974-02-08 | Kennedy Space Center FL | (Centennial) cachet on cover | Skylab-4 splashdown/recovery |
| United States | 1974-02-11 | Kennedy Space Center FL | (Centennial) cachet on cover | Viking-DS launch |
| United States | 1974-02-11 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1974-03-08 | Vandenberg AFB, CA | (Centennial) cachet on cover | X-4 / Miranda launch |
| United States | 1974-03-29 | Cape Canaveral FL | (Centennial) cachet on cover | Mariner-10 close-up of Mercury |
| United States | 1974-04-13 | Cape Canaveral FL | (Centennial) cachet on cover | Westar-1 launch |
| United States | 1974-05-14 | Houston TX (small font) | (Centennial) cachet on cover | 1st anniv. Skylab-1 launch |
| United States | 1974-05-14 | Houston TX (large font) | (Centennial) cachet on cover | |
| United States | 1974-05-14 | Houston TX (large font) | (Centennial) cachet (different) on cover | |
| United States | 1974-05-14 | Houston TX (large font) | (Centennial) cachet (different) on cover | |
| United States | 1974-05-30 | Kennedy Space Center FL | (Centennial) cachet on cover | ATS-6 launch |
| United States | 1974-05-30 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1974-06-03 | Vandenberg AFB, CA | (Centennial) cachet on cover | Explorer-52 (Hawkeye / Injun-6) launch |
| United States | 1974-07-16 | Vandenberg AFB, CA | (Centennial) cachet on cover | Aeros-2 launch |
| United States | 1974-08-30 | Vandenberg AFB, CA | (Centennial) cachet on cover | ANS launch |
| United States | 1974-10-11 | Kennedy Space Center FL | (Centennial) cachet on cover | Westar-2 launch |
| United States | 1974-11-15 | Vandenberg AFB, CA | (Centennial) cachet on cover | NOAA-4 and Intasat and OSCAR-7 launch |
| United States | 1974-11-21 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-4-8 launch |
| United States | 1974-11-22 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1974-11-22 | Kennedy Space Center FL | (Centennial and black rubber-stamp) cachet on cover | |
| United States | 1974-11-22 | Cape Canaveral FL | (Centennial) cachet on cover | Skynet-2B launch |
| United States | 1974-12-03 | Cape Canaveral FL | (Centennial) cachet on cover | Pioneer-11 first Jupiter flyby |
| United States | 1974-12-10 | Cape Canaveral FL | (Centennial) cachet on cover | Helios-1 launch |
| United States | 1974-12-18 | Cape Canaveral FL | (Centennial) cachet on cover | Symphonie-1 launch |
| United States | 1974-12-19 | Kennedy Space Center FL | (Centennial and black rubber-stamp) cachet on cover | |
| United States | 1974-12-19 | Kennedy Space Center FL | (Centennial and black rubber-stamp) cachet (and signature) on cover | |
| United States | 1974-12-19 | Cape Canaveral FL | (Centennial red rocket, type-1) cachet on cover | Symphonie-1 launch (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1975-01-22 | Vandenberg AFB, CA | (Centennial) cachet on cover | Landsat-2 launch |
| United States | 1975-02-06 | Cape Canaveral FL | (Centennial tan image and black text) cachet on cover | SMS-2 launch |
| United States | 1975-02-06 | Cape Canaveral FL | (Centennial red image and black text) cachet on cover | |
| United States | 1975-02-20 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-4-6 launch [failed] |
| United States | 1975-02-21 | Kennedy Space Center FL | (Centennial and black rubber-stamp) cachet on cover | |
| United States | 1975-03-16 | Cape Canaveral FL | (Centennial) cachet on cover | Mariner-10 third encounter of Mercury |
| United States | 1975-03-16 1976-04-04 | Cape Canaveral FL Pasadena CA | (Centennial) cachet on cover | Mariner-10 third encounter of Mercury USA 1557 FDC |
| United States | 1975-04-09 | Vandenberg AFB, CA | (Centennial) cachet on cover | GEOS-3 launch |
| United States | 1975-05-07 | Cape Canaveral FL | (Centennial) cachet on cover | Anik-A3 launch |
| United States | 1975-05-08 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1975-05-20 | Cape Canaveral FL | (Centennial) cachet on cover | DSCS-2-5/6 launch |
| United States | 1975-05-20 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1975-05-22 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-4-1 launch |
| United States | 1975-06-12 | Vandenberg AFB, CA | (Centennial) cachet on cover | Nimbus-6 launch |
| United States | 1975-06-18 | Cape Canaveral FL | (Centennial) cachet on cover | Canyon-6 launch ("supersecret spy satellite") |
| United States | 1975-06-18 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1975-06-21 | Cape Canaveral FL | (Centennial) cachet on cover | OSO-8 launch |
| United States | 1975-06-21 | Cape Canaveral FL | (Centennial yellow earth) cachet on cover | OSO-8 launch (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, and TIROS/ESSA type depicted) |
| United States | 1975-08-08 | Vandenberg AFB, CA | (Centennial) cachet on cover | COS-B launch |
| United States | 1975-08-20 | Cape Canaveral FL | (Centennial) cachet on cover | Viking-1 launch |
| United States | 1975-08-20 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1975-08-26 | Kennedy Space Center FL | (Centennial) cachet on cover | Symphonie-2 launch |
| United States | 1975-08-26 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1975-09-09 | Cape Canaveral FL | (Centennial) cachet on cover | Viking-2 launch |
| United States | 1975-09-09 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1975-09-25 | Kennedy Space Center FL | (Centennial) cachet on cover | Intelsat-4A-1 launch |
| United States | 1975-09-25 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1975-10-06 | Vandenberg AFB, CA | (Centennial) cachet on cover | Explorer-54 (AE-D) launch |
| United States | 1975-10-16 | Cape Canaveral FL | (Centennial) cachet on cover | GOES-1 launch |
| United States | 1975-10-16 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1975-11-19 | Kennedy Space Center FL | (Centennial) cachet on cover | Explorer-55 (AE-E) launch |
| United States | 1975-11-19 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1975-12-05 | Vandenberg AFB, CA | (Centennial) cachet on cover | DAD launch [failed] |
| United States | 1976-01-15 | Kennedy Space Center FL | (Centennial) cachet on cover | Helios-2 launch |
| United States | 1976-01-15 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1976-01-17 | Cape Canaveral FL | (Centennial) cachet on cover | CTS launch |
| United States | 1976-01-17 | Cape Canaveral FL | (Centennial) cachet (and signatures) on cover | |
| United States | 1976-01-19 | Kennedy Space Center FL | (Centennial) cachet on cover | CTS launch |
| United States | 1976-01-29 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-4A-2 launch |
| United States | 1976-01-29 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1976-02-19 | Kennedy Space Center FL | (Centennial) cachet on cover | Marisat-1 launch |
| United States | 1976-04-22 | Cape Canaveral FL | (Centennial) cachet on cover | NATO-3A launch |
| United States | 1976-04-22 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1976-05-04 | Vandenberg AFB, CA | (Centennial) cachet on cover | LAGEOS-1 launch |
| United States | 1976-05-13 | Cape Canaveral FL | (Centennial) cachet on cover | Comstar-1 launch |
| United States | 1976-05-13 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1976-05-21 | Kennedy Space Center FL | (Centennial Covers, with logo) cachet on cover | NASA-Beechcraft 1st KSC landing |
| United States | 1976-06-09 | Cape Canaveral FL | (Centennial) cachet on cover | Marisat-2 launch |
| United States | 1976-07-08 | Cape Canaveral FL | (Centennial Covers, with logo) cachet on cover | Palapa-A1 launch |
| United States | 1976-07-08 | Kennedy Space Center FL | (Centennial Covers, with logo) cachet on cover | |
| United States | 1976-07-20 | Hampton-Newport News VA | (Centennial) cachet on cover | Viking-1 landing on Mars |
| United States | 1976-07-20 1978-07-20 | Marshall Space Flight Center AL Hampton VA | (Centennial) cachet on cover | Viking-1 landing on Mars USA 1759 FDC |
| United States | 1976-07-20 1978-07-20 | Hampton-Newport News VA Hampton VA | (Centennial) cachet on cover | |
| United States | 1976-07-20 1978-07-20 | Kennedy Space Center FL Hampton VA | (Centennial) cachet on cover | |
| United States | 1976-07-29 | Vandenberg AFB, CA | (Centennial) cachet on cover | NOAA-5 launch |
| United States | 1976-08-07 | Kennedy Space Center FL | (Centennial) cachet on cover | Viking-2 enters Mars orbit |
| United States | 1976-09-03 | Pasadena CA | (Centennial) cachet on cover | Viking-2 landing on Mars |
| United States | 1976-09-03 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1976-09-03 | Marshall Space Flight Center AL | (Centennial) cachet on cover | |
| United States | 1976-09-03 1978-07-20 | Pasadena CA Hampton VA | (Centennial) cachet on cover | Viking-2 landing on Mars USA 1759 FDC |
| United States | 1976-09-03 1978-07-20 | Cape Canaveral FL Hampton VA | (Centennial) cachet on cover | |
| United States | 1976-09-03 1978-07-20 | Marshall Space Flight Center AL Hampton VA | (Centennial) cachet on cover | |
| United States | 1976-09-03 1978-07-20 | Hampton-Newport News VA Hampton VA | (Centennial) cachet on cover | |
| United States | 1976-09-11 | Greenbelt MD | (Centennial) cachet on cover | "Viking-1 orbiter leaves [its position above] the robot lander" (to begin its orbital walk) |
| United States | 1976-10-05 | Alamagordo NM | (Centennial Covers, with logo) cachet on cover | Space Hall of Fame |
| United States | 1976-10-14 | Cape Canaveral FL | (Centennial) cachet on cover | Marisat-3 launch |
| United States | 1976-10-14 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1977-01-27 | Kennedy Space Center FL | (Centennial) cachet on cover | NATO-3B launch |
| United States | 1977-01-27 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1977-02-18 | Edwards CA | (Centennial Covers, with logo) cachet on cover | OV-101 1st un-manned captive flight |
| United States | 1977-02-25 | Edwards CA | (Centennial Covers, with logo) cachet on cover | OV-101 3rd un-manned captive flight |
| United States | 1977-02-28 | Edwards CA | (Centennial Covers, with logo) cachet on cover | OV-101 4th un-manned captive flight |
| United States | 1977-03-10 | Cape Canaveral FL | (Centennial Covers, with logo) cachet on cover | Palapa-A2 launch |
| United States | 1977-03-10 | Kennedy Space Center FL | (Centennial Covers, with logo) cachet on cover | |
| United States | 1977-04-20 | Cape Canaveral FL | (Centennial) cachet on cover | ESA-GEOS-1 launch ("ESRO-GEOS" in text) |
| United States | 1977-04-20 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1977-05-12 | Cape Canaveral FL | (Centennial) cachet on cover | DSCS-2-7/8 launch |
| United States | 1977-05-26 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-4A-4 launch |
| United States | 1977-05-26 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1977-06-28 | Edwards CA | (Centennial Covers, with logo) cachet on cover | OV-101 2nd manned captive flight |
| United States | 1977-07-14 | Cape Canaveral FL | (Centennial) cachet on cover | GMS-1 launch |
| United States | 1977-07-14 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1977-07-18 | MSFC, AL | (Centennial Covers, with logo) cachet on cover | 1st SRB static firing |
| United States | 1977-07-26 | Edwards CA | (Centennial Covers, with logo) cachet on cover | OV-101 3rd manned captive flight |
| United States | 1977-08-12 | Cape Canaveral FL | (Centennial Covers, with logo) cachet on cover | HEAO-1 launch |
| United States | 1977-08-12 | Marshall Space Flight Center AL | (Centennial, same but no logo) cachet on cover | |
| United States | 1977-08-13 | Cape Canaveral FL | (Centennial) cachet on cover | Voyager-2 pre-launch: mated to rocket and rollout |
| United States | 1977-08-20 | Cape Canaveral FL | (Centennial) cachet on cover | Voyager-2 launch |
| United States | 1977-08-25 | Kennedy Space Center FL | (Centennial) cachet on cover | SIRIO-1 launch |
| United States | 1977-08-31 | Cape Canaveral FL | (Centennial) cachet on cover | Voyager-1 pre-launch: mated to rocket and rollout |
| United States | 1977-09-05 | Pasadena CA | (Centennial) cachet on cover | Voyager-1 launch |
| United States | 1977-09-05 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1977-09-13 | Kennedy Space Center FL | (Centennial brown image and black text) cachet on cover | OTS-1 launch [failed] |
| United States | 1977-09-13 | Kennedy Space Center FL | (Centennial blue image and black text) cachet on cover | |
| United States | 1977-09-13 | Edwards CA | (Centennial Covers, with logo) cachet on cover | 2nd flight Shuttle Enterprise |
| United States | 1977-09-23 | Edwards CA | (Centennial Covers, with logo) cachet on cover | 3rd flight Shuttle Enterprise |
| United States | 1977-09-29 | Kennedy Space Center FL | (Centennial) cachet on cover | Intelsat-4A-5 launch [failed] |
| United States | 1977-09-29 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1977-10-12 | Edwards CA | (Centennial Covers, with logo) cachet on cover | 4th Enterprise manned free flight |
| United States | 1977-10-22 | Cape Canaveral FL | (Centennial) cachet on cover | Explorer-56 (ISEE-1) and ISEE-2 launch |
| United States | 1977-11-22 | Cape Canaveral FL | (Centennial) cachet on cover | Meteosat-1 launch |
| United States | 1977-12-12 | Kennedy Space Center FL | (Centennial) cachet on cover | Rhyolite-3 launch |
| United States | 1977-12-14 | Kennedy Space Center FL | (Centennial) cachet on cover | CS-1 launch |
| United States | 1978-01-06 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-4A-3 launch |
| United States | 1978-01-26 | Kennedy Space Center FL | (Centennial) cachet on cover | Explorer-57 (IUE) launch |
| United States | 1978-02-09 | Cape Canaveral FL | (Centennial) cachet on cover | FltSatCom-1 launch |
| United States | 1978-03-05 | Vandenberg AFB, CA | (Centennial) cachet on cover | Landsat-3 and OSCAR-8 and PIX-1 launch |
| United States | 1978-03-10 | Edwards CA | (Centennial Covers, with logo) cachet on cover | OV-101 ferry flight |
| United States | 1978-03-13 | MSFC, AL | (Centennial Covers, no logo) cachet on cover | OV-101 arrives at MSFC |
| United States | 1978-03-25 | Cape Canaveral FL | (Centennial) cachet on cover | DSCS-2-9/10 launch [failed] |
| United States | 1978-03-31 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-4A-6 launch |
| United States | 1978-04-19 | MSFC, AL | (Centennial Covers, with logo) cachet on cover | Shuttle external tank inserted in test stand |
| United States | 1978-04-23 | MSFC, AL | (Centennial Covers, with logo) cachet on cover | OV-101 mated to external tank |
| United States | 1978-04-26 | Vandenberg AFB, CA | (Centennial) cachet on cover | Explorer-58 (HCMM) launch |
| United States | 1978-05-11 | Cape Canaveral FL | (Centennial) cachet on cover | OTS-2 launch |
| United States | 1978-05-11 | Kennedy Space Center FL | (Centennial) cachet on cover | |
| United States | 1978-05-20 | Cape Canaveral FL | (Centennial) cachet on cover | Pioneer-12 launch |
| United States | 1978-05-30 | MSFC, AL | (Centennial Covers) cachet on cover | Space Shuttle vibration test |
| United States | 1978-06-16 | Cape Canaveral FL | (Centennial) cachet on cover | GOES-3 launch |
| United States | 1978-06-26 | Vandenberg AFB, CA | (Centennial) cachet on cover | SeaSat launch |
| United States | 1978-06-29 | Cape Canaveral FL | (Centennial) cachet on cover | Comstar-3 launch |
| United States | 1978-07-14 | Kennedy Space Center FL | (Centennial) cachet on cover | ESA-GEOS-2 launch |
| United States | 1978-07-14 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1978-08-08 | Kennedy Space Center FL | (Centennial) cachet on cover | Pioneer-13 launch |
| United States | 1978-08-12 | Cape Canaveral FL | (Centennial) cachet on cover | Explorer-59 (ISEE-3 / ICE) launch |
| United States | 1978-10-13 | Vandenberg AFB, CA | (Centennial) cachet on cover | TIROS-N launch |
| United States | 1978-11-13 | Kennedy Space Center FL | (Centennial) cachet on cover | HEAO-2 launch |
| United States | 1978-10-20 | MSFC, AL | (Centennial Covers) cachet on cover | Space Shuttle vibration test, 2nd phase |
| United States | 1978-12-04 | Cape Canaveral FL | (Centennial) cachet on cover | Pioneer-12 into Venus orbit |
| United States | 1978-12-09 | Cape Canaveral FL | (Centennial) cachet on cover | Pioneer-13 multiprobe landing |
| United States | 1978-12-15 | Cape Canaveral FL | (Centennial) cachet on cover | Anik-B1 launch |
| United States | 1979-01-30 | MSFC, AL | (Centennial Covers) cachet on cover | Space Shuttle vibration test, 3rd phase |
| United States | 1979-03-05 | Kennedy Space Center FL | (Centennial) cachet on cover | Voyager-1 closest approach to Jupiter |
| United States | 1979-03-24 | Cape Canaveral FL | (Centennial Covers, with logo) cachet on cover | Shuttle Columbia arrives at KSC |
| United States | 1979-07-09 | Cape Canaveral FL | (Centennial) cachet on cover | Voyager-2 closest approach to Jupiter |
| United States | 1979-09-20 | Kennedy Space Center FL | (Centennial) cachet on cover | HEAO-3 launch |
| United States | 1980-10-30 | Cape Canaveral FL | (Centennial) cachet on cover | FltSatCom-4 launch |
| United States | 1980-11-15 | Cape Canaveral FL | (Centennial) cachet on cover | SBS-1 launch |
| United States | 1980-11-24 | Cape Canaveral FL | (Centennial) cachet (and signature) on cover | STS-1 pre-launch: "roll-over" |
| United States | 1980-12-06 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-5-2 launch |
| United States | 1981-02-21 | Cape Canaveral FL | (Centennial) cachet on cover | Comstar-4 launch |
| United States | 1981-05-22 | Cape Canaveral FL | (Centennial) cachet on cover | GOES-5 launch |
| United States | 1981-08-06 | Kennedy Space Center FL | (Centennial) cachet on cover | FltSatCom-5 launch [partial failure] |
| United States | 1981-08-31 | Kennedy Space Center FL | (Centennial Covers, with logo) cachet on cover | STS-2 pre-launch: "rollout" |
| United States | 1981-09-24 | Kennedy Space Center FL | (Centennial) cachet on cover | SBS-2 launch |
| United States | 1981-09-24 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1981-10-31 | Cape Canaveral FL | (Centennial Covers, with logo) cachet on cover | STS-2 pre-launch: "final countdown begins" |
| United States | 1981-11-12 | Kennedy Space Center FL | (Centennial Covers, with logo) cachet on cover | STS-2 launch |
| United States | 1981-11-13 | Kennedy Space Center FL | (Centennial Covers, with logo) cachet on cover | STS-2 "first test of the remote manipulator" (this mission carried the OSTA4-1 science payload5, which included the SIR-A Earth-mapping radar) |
| United States | 1981-11-14 | Edwards CA | (Centennial Covers, with logo) cachet on cover | STS-2 landing (this mission carried the OSTA4-1 science payload5, which included the SIR-A Earth-mapping radar) |
| United States | 1981-11-25 | Kennedy Space Center FL | (Centennial Covers, with logo) cachet on cover | STS-2 arrives at KSC from Edwards AFB |
| United States | 1982-01-15 | Cape Canaveral FL | (Centennial) cachet on cover | Satcom-4 launch |
| United States | 1982-02-25 | Kennedy Space Center FL | (Centennial) cachet on cover | Westar-4 launch |
| United States | 1982-03-04 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-5-4 launch |
| United States | 1982-02-18 | Kennedy Space Center FL | (Centennial Covers, with logo) cachet on STS-3 pre-launch cover | STS-3 pre-launch: "rollout" |
| United States | 1982-03-18 | Kennedy Space Center FL | (Centennial Covers, with logo) cachet on STS-3 pre-launch cover | STS-3 pre-launch: "final countdown begins" |
| United States | 1982-03-22 | Kennedy Space Center FL | (Centennial Covers, with logo) cachet on STS-3 launch cover | STS-3 launch |
| United States | 1982-04-10 | Cape Canaveral FL | (Centennial) cachet on cover | Insat-1A launch |
| United States | 1982-08-26 | Cape Canaveral FL | (Centennial) cachet on cover | Anik-D1 launch |
| United States | 1982-09-21 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-5 pre-launch: "rollout" (during this mission SBS-3 and Anik-C3 (Telesat-6) were deployed) |
| United States | 1982-09-28 | Kennedy Space Center FL | (Centennial) cachet on cover | Intelsat-5-5 launch |
| United States | 1982-10-18 | Kennedy Space Center FL | (Centennial) cachet on cover | SBS-3 and Anik-C3 loaded aboard Columbia (STS-5) |
| United States | 1982-10-27 | Kennedy Space Center FL | (Centennial) cachet on cover | Satcom-5 launch (but Satcom-1/2/3/3R/4 type depicted) |
| United States | 1982-10-27 | Cape Canaveral FL | (Centennial) cachet on cover | |
| United States | 1982-11-07 | Houston TX | (Centennial) cachet on cover | STS-5 pre-launch: final countdown begins (during this mission SBS-3 and Anik-C3 (Telesat-6) were deployed) |
| United States | 1982-11-11 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-5 launch and SBS-3 deployed |
| United States | 1982-11-11 | Kennedy Space Center FL | (Centennial) cachet (and signature) on cover | |
| United States | 1982-11-12 | Kennedy Space Center FL | (Centennial) cachet on cover | Anik-C3 (Telesat-6) deployed (by STS-5) |
| United States | 1982-11-15 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-5 spacewalk canceled (during this mission SBS-3 and Anik-C3 (Telesat-6) were deployed) |
| United States | 1982-11-16 | Edwards CA | (Centennial) cachet on cover | STS-5 landing (during this mission SBS-3 and Anik-C3 (Telesat-6) were deployed) |
| United States | 1982-11-22 | Edwards CA | (Centennial) cachet on cover | STS-5 leaves for KSC (during this mission SBS-3 and Anik-C3 (Telesat-6) were deployed) |
| United States | 1982-11-30 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-6 pre-launch: "rollout" |
| United States | 1982-12-18 | Cape Canaveral FL | (Centennial) cachet on cover | STS-6 pre-launch: "flight readiness firing" |
| United States | 1983-01-11 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-6 pre-launch: "countdown simulation" |
| United States | 1983-04-04 | Kennedy Space Center FL | (Centennial) cachet on cover | TDRS-1 deployed [partial failure] (by STS-6) |
| United States | 1983-04-07 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-6 spacewalk (during this mission TDRS-1 was deployed) |
| United States | 1983-04-09 | Edwards CA | (Centennial) cachet on cover | STS-6 landing |
| United States | 1983-06-18 | Kennedy Space Center FL | (Centennial) cachet on cover | Anik-C2 deployed (by STS-7) |
| United States | 1983-06-19 | Cape Canaveral FL | (Centennial) cachet on cover | Palapa-B1 deployed (by STS-7) |
| United States | 1983-06-24 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-7 landing (during this mission, Anik-C2, Palapa-B1, and SPAS-1 were deployed) |
| United States | 1984-02-03 | Cape Canaveral FL | (Centennial) cachet on cover | Westar-6 deployed (by STS-11 (41B)) |
| United States | 1984-02-06 | Cape Canaveral FL | (Centennial) cachet on cover | Palapa-B2 deployed (by STS-11 (41B)) |
| United States | 1984-04-06 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-13 (41C) launch (during this mission LDEF was deployed, and SMM was repaired) |
| United States | 1984-04-13 | Edwards AFB, CA | (Centennial) cachet on cover | STS-13 (41C) landing (during this mission LDEF was deployed, and SMM was repaired) |
| United States | 1984-06-09 | Cape Canaveral FL | (Centennial) cachet on cover | Intelsat-5-9 launch [failed] |
| United States | 1984-08-09 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-16 (41D) pre-launch: "second rollout" (during this mission SBS-4, Leasat-F1, and Telstar-3C were deployed) |
| United States | 1984-08-30 | Kennedy Space Center FL | (Centennial) cachet on cover | SBS-4 deployed (by STS-16 (41D)) |
| United States | 1984-08-31 | Kennedy Space Center FL | (Centennial) cachet on cover | Leasat-F1 (Syncom-4-2) deployed (by STS-16 (41D)) |
| United States | 1984-09-01 | Cape Canaveral FL | (Centennial) cachet on cover | Telstar-3C deployed (by STS-16 (41D)) |
| United States | 1984-09-21 | Cape Canaveral FL | (Centennial) cachet on cover | STS-17 (41G) pre-launch: "rollout" (during this mission ERBS was deployed) |
| United States | 1984-10-05 | Kennedy Space Center FL | (Centennial) cachet on cover | ERBS deployed (by STS-17 (41G)) |
| United States | 1984-10-11 | Kennedy Space Center FL | (Centennial) cachet on cover | "first American woman to walk in space" (by STS-17 (41G); during this mission ERBS was deployed) |
| United States | 1984-11-09 | Kennedy Space Center FL | (Centennial) cachet on cover | Anik-D2 ("Telesat-H" / Telesat-8) deployed (by STS-19 (51A)) |
| United States | 1984-11-10 | Cape Canaveral FL | (Centennial) cachet on cover | Leasat-F2 (Syncom-4-1) deployed (by STS-19 (51A) |
| United States | 1984-11-12 | Cape Canaveral FL | (Centennial) cachet on cover | Palapa-B2 recovered (by STS-19 (51A)) |
| United States | 1984-11-13 | Cape Canaveral FL | (Centennial) cachet on cover | NATO-3D launch |
| United States | 1985-01-25 | Cape Canaveral FL | (Centennial) cachet on cover | Magnum-1 deployed (by STS-20 (51C)); ("secret military spy satellite") |
| United States | 1985-01-27 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-20 (51C) landing (during this mission Magnum-1 was deployed); ("secret mission") |
| United States | 1985-04-12 | Cape Canaveral FL | (Centennial) cachet on cover | STS-23 (51D) launch and Anik-C1 ("Telesat-I" / Telesat-9) deployed |
| United States | 1985-04-12 | Edwards CA | (Centennial Covers, with logo) cachet on cover | Atlantis leaves California |
| United States | 1985-04-13 | Cape Canaveral FL | (Centennial Covers, with logo) cachet on cover | Atlantis arrives in Florida |
| United States | 1985-04-13 | Cape Canaveral FL | (Centennial) cachet on cover | Leasat-F3 (Syncom-4-3) deployed (by STS-23 (51D)) |
| United States | 1985-04-29 | Kennedy Space Center FL | (Centennial) cachet on cover | "Spacelab-3" activated (by STS-24 (51B); during this mission NUSat was deployed, but GLOMR deployment failed) |
| United States | 1985-04-29 | Kennedy Space Center FL | (Centennial) cachet (different) on cover | |
| United States | 1985-06-17 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-25 (51G) launch and Morelos-1 deployed |
| United States | 1985-06-17 | Kennedy Space Center FL | (Centennial) cachet (different) on cover | |
| United States | 1985-06-18 | Cape Canaveral FL | (Centennial) cachet on cover | Arabsat-1B deployed (by STS-25 (51G)) |
| United States | 1985-06-19 | Kennedy Space Center FL | (Centennial) cachet on cover | Telstar-3D6 deployed (by STS-25 (51G)) |
| United States | 1985-06-24 | Edwards CA | (Centennial) cachet on cover | STS-25 (51G) landing (during this mission, Morelos-1, Arabsat-1B, and Telstar-3D6 were deployed, and SPARTAN-101 was deployed and retrieved) |
| United States | 1985-07-29 | Cape Canaveral FL | (Centennial) cachet on cover | STS-26 (51F) launch (during this mission PDP was deployed) |
| United States | 1985-08-27 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-27 (51I) launch and Aussat-A1 deployed; ASC-1 deployed |
| United States | 1985-08-27 | Cape Canaveral FL | (Centennial) cachet (different) on cover | |
| United States | 1985-08-29 | Kennedy Space Center FL | (Centennial) cachet on cover | Leasat-F4 (Syncom-4-4) deployed (by STS-27 (51I)) |
| United States | 1985-08-30 | Cape Canaveral FL | (Centennial) cachet on cover | STS-28 (51J) pre-launch: "rollout" (during this mission DSCS-3-B4/B5 were deployed) ("secret military mission") |
| United States | 1985-08-31 | Cape Canaveral FL | (Centennial) cachet on cover | STS-27 (51I) first EVA (Leasat-F3 (Syncom-4-3) recovered) |
| United States | 1985-09-12 | Kennedy Space Center FL | (Centennial red and black) cachet on cover | STS-28 (51J) pre-launch: "flight readiness test" (during this mission DSCS-3-B4/B5 were deployed) ("secret military mission") |
| United States | 1985-09-12 | Kennedy Space Center FL | (Centennial brown and black) cachet on cover | |
| United States | 1985-10-30 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-30 (61A) launch (during this mission GLOMR-1 was deployed) |
| United States | 1985-11-06 | Edwards AFB, CA | (Centennial) cachet on cover | STS-30 (61A) landing (during this mission GLOMR-1 was deployed) |
| United States | 1985-11-27 | Kennedy Space Center FL | (Centennial) cachet on cover | STS-31 (61B) launch and Aussat-A2 deployed; Morelos-2 deployed |
| United States | 1985-11-28 | Cape Canaveral FL | (Centennial) cachet on cover | Satcom-Ku2 deployed (by STS-31 (61B)) |
| United States | 1986-01-12 | Cape Canaveral FL | (Centennial) cachet on cover | STS-32 (61C) launch and Satcom-Ku1 deployed |
| Summary: This list includes about 470 covers produced from 1962 thru 1986 (24 years) | ||||
| Centennial-like cachets (mostly on un-manned satellite (or scientific rocket or balloon) launch covers) | ||||
| United States | 1965-10-25 | Cape Canaveral FL | (Centennial-like) cachet on cover | GATV-6 launch |
| United States | 1966-06-01 | Cape Canaveral FL | (Centennial-like) cachet on cover | ATDA launch (the Gemini-9A launch was postponed for two days, until 3 Jun) |
| United States | 1966-06-03 | Cape Canaveral FL | (Centennial-like) cachet on cover | Gemini-9A launch |
| United States | 1967-04-28 | Kennedy Space Center FL | (Centennial-like) cachet on cover | OV5-1/3 and US-ERS-18 and Vela-7/8 launch |
| United States | 1967-12-13 | Cape Canaveral FL (hand and machine cancels) | (Centennial-like) cachet on cover | Pioneer-8 and TETR-1 launch |
| United States | 1967-12-13 | Kennedy Space Center FL | (Centennial-like) cachet on cover | |
| United States | 1968-01-07 | Kennedy Space Center FL | (Centennial-like) cachet on cover | Surveyor-7 launch |
| United States | 1968-01-07 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1968-03-04 | Cape Canaveral FL | (Centennial-like) cachet on cover | OGO-5 launch |
| United States | 1968-03-04 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1968-08-10 | Kennedy Space Center FL | (Centennial-like) cachet on cover | ATS-4 launch [partial failure] |
| United States | 1968-08-11 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1968-08-11 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1968-11-08 | Cape Canaveral FL | (Centennial-like) cachet on cover | Pioneer-9 and TETR-2 launch |
| United States | 1968-12-21 | Cape Canaveral FL | (Centennial-like) cachet on cover | Apollo-8 launch |
| United States | 1969-01-22 | Kennedy Space Center FL | (Centennial-like red rocket, type-2 and black typed) cachet on cover | OSO-5 launch (but Transit-2A, Pioneer-5/Explorer-61, TIROS/ESSA type, and Vanguard-2 depicted) |
| United States | 1969-02-06 | Cape Canaveral FL | (Centennial-like) cachet on cover | Intelsat-3-3 launch |
| United States | 1969-02-09 | Cape Canaveral FL | (Centennial-like) cachet on cover | TACOMSAT-1 launch |
| United States | 1969-02-25 | Cape Canaveral FL | (Centennial-like) cachet on cover | Mariner-6 launch |
| United States | 1969-02-25 | Cape Canaveral FL | (Centennial-like) cachet (slightly different) on cover | |
| United States | 1969-02-25 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1969-02-26 | Cape Canaveral FL (machine cancel) | (Centennial-like) cachet on cover | ESSA-9 launch |
| United States | 1969-02-26 | Cape Canaveral FL (hand cancel) | (Centennial-like) cachet (different) on cover | |
| United States | 1969-03-27 | Cape Canaveral FL (machine cancel) | (Centennial-like) cachet on cover | Mariner-7 launch |
| United States | 1969-03-27 | Cape Canaveral FL (hand cancel) | (Centennial-like) cachet (different) on cover | |
| United States | 1969-05-22 | Cape Canaveral FL | (Centennial-like) cachet on cover | Intelsat-3-4 launch |
| United States | 1969-05-22 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1969-05-22 | Cape Canaveral FL | (Centennial-like red rocket, type-2) cachet on cover | Intelsat-3-4 launch (but Transit-2A, Pioneer-5/Explorer-61, TIROS/ESSA type, and Vanguard-2 depicted) |
| United States | 1969-05-23 | Cape Canaveral FL (hand cancel) | (Centennial-like) cachet on cover | OV5-5/6/9 and Vela-9/10 launch |
| United States | 1969-05-23 | Cape Canaveral FL (machine cancel) | (Centennial-like) cachet (slightly different) on cover | |
| United States | 1969-05-23 | Cape Canaveral FL (machine cancel) | (Centennial-like) cachet (different) on cover | |
| United States | 1969-05-23 | Cape Canaveral FL (machine cancel) | (Centennial-like) cachet (slightly different) on cover | |
| United States | 1969-07-26 | Cape Canaveral FL | (Centennial-like) cachet on cover | Intelsat-3-5 launch [partial failure] |
| United States | 1969-08-09 | Cape Canaveral FL | (Centennial-like orange earth) cachet on cover | OSO-6 and PAC-1 launch (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, and TIROS/ESSA type depicted) |
| United States | 1969-08-27 | Cape Canaveral FL | (Centennial-like yellow earth) cachet on cover | Pioneer-E and TETR-3 launch [failed] (but Relay, Vanguard-2, Pioneer-3/4 type, Explorer-1, and TIROS/ESSA type depicted) |
| United States | 1969-08-27 | Cape Canaveral FL | Centennial-like) cachet on cover | Pioneer-E and TETR-3 launch [failed] |
| United States | 1969-08-28 | Cape Canaveral FL | (Centennial-like) cachet on cover | Pioneer-E and TETR-3 launch [failed] |
| United States | 1969-08-28 | Cape Canaveral FL | (Centennial-like red rocket, type-2) cachet on cover | Pioneer-E and TETR-3 launch [failed] (but Transit-2A, Pioneer-5/Explorer-61, TIROS/ESSA type, and Vanguard-2 depicted) |
| United States | 1970-03-21 | Cape Canaveral FL | (Centennial-like) cachet on cover | NATO-2A launch ("NATO-1" in text) |
| United States | 1970-04-22 | Cape Canaveral FL | (Centennial-like) cachet on cover | Intelsat-3-7 launch |
| United States | 1970-11-30 | Cape Canaveral FL | (Centennial-like) cachet on cover | OAO-B launch [failed] |
| United States | 1971-05-08 | Cape Canaveral FL | (Centennial-like) cachet on cover | Mariner-8 launch [failed] |
| United States | 1972-12-11 | Cape Canaveral FL | (Centennial-like) cachet on cover | Apollo-17 LEM lunar landing |
| United States | 1972-12-14 | Cape Canaveral FL | (Centennial-like) cachet on cover | Apollo-17 LEM takeoff from the Moon |
| United States | 1972-12-19 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | Apollo-17 splashdown/recovery |
| United States | 1973-03-06 | Cape Canaveral FL | (Centennial-like) cachet on cover | Rhyolite-2 launch |
| United States | 1973-07-28 | Cape Canaveral FL | (Centennial-like) cachet on cover | Skylab-3 launch |
| United States | 1973-08-24 | Cape Canaveral FL | (Centennial-like) cachet on cover | Intelsat-4-7 launch |
| United States | 1973-10-26 | Cape Canaveral FL | (Centennial-like) cachet on cover | Explorer-50 (IMP-J/IMP-8) launch |
| United States | 1973-10-26 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1973-12-14 | Cape Canaveral FL | (Centennial-like) cachet on cover | DSCS-2-3/4 launch |
| United States | 1973-12-14 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1974-02-08 | Cape Canaveral FL | (Centennial-like) cachet on cover | Skylab-4 splashdown/recovery |
| United States | 1974-05-30 | Cape Canaveral FL | (Centennial-like) cachet on cover | ATS-6 launch |
| United States | 1974-05-30 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1974-10-10 | Cape Canaveral FL | (Centennial-like) cachet on cover | Westar-2 launch |
| United States | 1974-12-19 | Cape Canaveral FL | (Centennial-like) cachet on cover | Symphonie-1 launch |
| United States | 1975-02-06 | Cape Canaveral FL | (Centennial-like) cachet on cover | SMS-2 launch |
| United States | 1975-02-06 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1975-05-22 | Cape Canaveral FL | (Centennial-like) cachet on cover | Intelsat-4-1 launch |
| United States | 1975-05-22 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1975-06-21 | Cape Canaveral FL | (Centennial-like) cachet on cover | OSO-8 launch |
| United States | 1978-05-11 | Kenndy Space Center FL | (Centennial-like) cachet on cover | OTS-2 launch |
| United States | 1978-07-14 | Kennedy Space Center FL | (Centennial-like) cachet on cover | ESA-GEOS-2 launch |
| United States | 1978-11-13 | Cape Canaveral FL | (Centennial-like) cachet on cover | HEAO-2 launch |
| United States | 1978-11-13 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1978-11-20 | Orlando FL, Kennedy Space Center Branch | (Centennial-like) cachet on cover | NATO-3C launch |
| United States | 1978-11-20 | Orlando FL, Kennedy Space Center Branch | (Centennial-like) cachet (different) on cover | |
| United States | 1981-05-22 | Kennedy Space Center FL | (Centennial-like) cachet on cover | GOES-5 launch |
| United States | 1981-08-06 | Kennedy Space Center FL | (Centennial-like) cachet on cover | FltSatCom-5 launch [partial failure] |
| United States | 1981-08-06 | Kennedy Space Center FL | (Centennial-like) cachet (different) on cover | |
| United States | 1981-08-06 | Kennedy Space Center FL | (Centennial-like yellow earth) cachet on cover | |
| United States | 1981-11-12 | Kennedy Space Center FL | (Centennial-like) cachet on cover | STS-2 launch; mission included the OSTA4-1 science payload5, which included the SIR-A radar |
| United States | 1981-11-12 | Kennedy Space Center FL | (Centennial-like) cachet (different) on cover | |
| United States | 1981-12-15 | Kennedy Space Center FL | (Centennial-like) cachet on cover | Intelsat-5-3 launch |
| United States | 1981-12-15 | Kennedy Space Center FL | (Centennial-like) cachet (different) on cover | |
| United States | 1982-04-10 | Cape Canaveral FL | (Centennial-like) cachet on cover | Insat-1A launch |
| United States | 1982-04-10 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1982-04-10 | Cape Canaveral FL | (Centennial-like) cachet (different) on cover | |
| United States | 1982-11-11 | Kennedy Space Center FL | (Centennial-like) cachet on cover | STS-5 launch; SBS-3 deployed |
| United States | 1983-04-04 | Kennedy Space Center FL | (Centennial-like) cachet on cover | STS-6 launch and TDRS-1 deployed [partial failure] |
| United States | 1983-04-04 | Kennedy Space Center FL | (Colonial Cachet and Centennial-like) cachet on cover | |
| United States | 1983-06-18 | Kennedy Space Center FL | (Centennial-like) cachet on cover | STS-7 launch and Anik-C2 deployed |
| United States | 1983-06-18 | Kennedy Space Center FL | (Centennial-like) cachet (different) on cover | |
| United States | 1983-06-18 | Kennedy Space Center FL | (Centennial-like) cachet (different) on cover | |
| United States | 1983-06-18 | Kennedy Space Center FL | (Centennial-like) cachet (different) on cover | |
| United States | 1983-08-30 | Kennedy Space Center FL | (Centennial-like red rocket, type-1 and blue printed and blue hand-printed) cachet on cover | STS-8 launch (but Pioneer-3/4 type, Pioneer-5/Explorer-61, and Vanguard-2 depicted) |
| United States | 1983-08-30 | Kennedy Space Center FL | (Centennial-like) cachet (different) on cover | STS-8 launch |
| United States | 1983-08-30 | Kennedy Space Center FL | (Centennial-like) cachet (different) on cover | |
| United States | 1983-11-28 | Kennedy Space Center FL | (Centennial-like) cachet on cover | STS-9 launch |
| United States | 1983-11-28 | Kennedy Space Center FL | (Centennial-like) cachet (different) on cover | |
| United States | 1984-08-30 | Kennedy Space Center FL | (Centennial-like) cachet on cover | STS-41D launch and SBS-4 deployed |
| United States | 1984-08-30 | Kennedy Space Center FL | (Centennial-like) cachet (different) on cover | |
1Pioneer-5 and Explorer-6 were similar "paddlewheel" satellites. It is believed that Explorer-6 contained two short antennas on its "top", whereas Pioneer-5 contained only a single short antenna. When there are no antennas on top, the distinction is unclear, but of the two, Pioneer-5 is assumed.
3The Centennial [Covers] cachets for launches of Intelsat-3-1 on 1968-09-19 and LES-6 and OV2-5 and OV5-2/4 on 1968-09-26 were inadvertently swapped.
4OSTA: Office of Space and Terrestrial Applications
5Payloads, as opposed to satellites, are neither deployed from, nor recovered to, the Space Shuttle cargo bay.
6There is disagreement among various sources on whether this should be called Telstar-3D or Telstar-3B! See Boeing's Telstar-3 - AT&T's Advanced New Communications Satellite.
7To demonstrate the structural and thermal integrity of the space vehicle and to verify adequacy of the Block II heatshield design for entry at lunar return conditions; also, a 70 mm still camera photographed Earth's surface every 10.6 seconds, taking 715 good-quality high-resolution pictures.
Below is a Summary of Centennial (and Centennial-like) Covers with generic cachets with multiple satellites depicted, from the stamp and launch cover tables above.
1Pioneer-5 and Explorer-6 were similar "paddlewheel" satellites. It is believed that Explorer-6 contained two short antennas on its "top", whereas Pioneer-5 contained only a single short antenna. When there are no antennas on top, the distinction is unclear, but of the two, Pioneer-5 is assumed.
Back to Featured cachet/cover types.
Back to Un-manned Satellite Philately.
