This page contains covers with "Space Master" cachets producted by Robert G. Rank of Union City PA to mark satellite launches and other space-related events. Those covers most often include this logo and/or this logo on the front, and are often numbered either on the front or the back. One Space Master no.0 ("Space-Master A" on back) cover has been found, but the authors have never seen cover numbers 12 or greater, for which we have no information whatsoever. They may not exist.
Blue highlighting is used to identify postal items only of interest for completing this collection of numbered covers, as they are not in the domains of primary interest for the authors.
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.
Below is a list of "Space Master" 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|
|"Space Master" cachets|
|United States||1976-07-08||Cape Canaveral FL||(Space Master no.0 ("Space-Master A" on back)) cachet on cover, also back||Palapa-A1 launch|
|United States||1976-07-20||Pasadena CA||(Space Master no.1) cachet on cover, also back||Viking-1 landing on Mars|
|United States||1976-09-03||Pasadena CA||(Space Master no.2) cachet on cover||Viking-2 landing on Mars|
|United States||1976-09-17||Palmdale CA||(Space Master no.3) cachet on cover, also back||Shuttle Enterprise rollout|
|United States||1976-10-27||Houston TX||(Space Master no.4) cachet on cover, also back||Gulfstream simulated Shuttle landings|
|United States||1977-02-18||Edwards CA||(Space Master no.5) cachet on cover, also back||Shuttle Enterprise flight on 747|
|United States||1977-06-18||Edwards CA||(Space Master no.6) cachet on cover, also back||Shuttle Enterprise test flights on 747|
|United States||1977-08-12||Edwards CA||(Space Master no.7) cachet on cover, also back||first Shuttle free flight and landing (released from 747)|
|United States||1977-08-20||Cape Canaveral FL||(Space Master no.8) cachet on cover, also back||Voyager-2 launch|
|United States||1977-09-05||Cape Canaveral FL||(Space Master no.9) cachet on cover, also back||Voyager-1 launch|
|United States||1978-05-20||Cape Canaveral FL||(Space Master no.10) cachet on cover, also back||Pioneer-12 launch|
|United States||1978-08-08||Cape Canaveral FL||(Space Master no.11) cachet on cover, also back||Pioneer-13 launch|
|Space Master no.12 or greater have not been found and may not exist|
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