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SI (Metric System) Unit Names
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SI (Metric System) Unit Names
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Below are checklists of SI (metric system) system unit names on postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.). Currently nineteen (19) SI units are named after prominent scientists who were involved in some aspect of physics relating to the unit named after them. The unit names are listed in order of complexity, starting with SI base units, followed by simpler and then more complex derived units. (Note about capitalization: unit names when spelled-out are not capitalized [Celsius being the exception], the first letter of the unit symbols are capitalized, and when the person and not the unit is meant, the names are capitalized.) Catalog numbers, years of issue, and notes on the items featured are given when available. If readers know of additional information or images, please contact the author using the e-mail address at the bottom of this page.
Additional examples of spelled-out metric unit names can be found among the many postal items featuring the metric system. Those items are not double-listed here. This page focuses on the metric-named personalities, not on the metric units named after them.
| SI (Metric System) Unit Names (the scientists behind the units) | ||
|---|---|---|
| SI Unit Name* | Unit Symbol | Person (birth-death years) |
| ampere | A | André-Marie Ampère (1775 - 1836) |
| becquerel | Bq | Antoine-Henri Becquerel (1852 - 1908) |
| (degree) Celsius | °C | Anders Celsius (1701 - 1744) |
| coulomb | C | Charles Coulomb (1736 - 1806) |
| farad | F | Michael Faraday (1791 - 1867) |
| gray | Gy | Louis Harold Gray (1905 - 1965) |
| henry | H | Joseph Henry (1797 - 1878) |
| hertz | Hz | Heinrich Rudolf Hertz (1857 - 1894) |
| joule | J | James Prescott Joule (1818 - 1889) |
| kelvin | K | Lord Kelvin (William Thomson) (1824 - 1907) |
| newton | N | Sir Isaac Newton (1642 - 1727)2 |
| ohm | Ω | George Simon Ohm (1787 - 1854) |
| pascal | Pa | Blaise Pascal (1623 - 1662) |
| siemens | S | Werner von Siemens (1816 - 1892) |
| sievert | Sv | Rolf Sievert (1898 - 1966) |
| tesla | T | Nikola Tesla (1856 - 1943) |
| volt | V | Alessandro Volta (1745 - 1827) |
| watt | W | James Watt (1736 - 1819) |
| weber | Wb | Wilhelm Eduard Weber (1804 - 1891) |
| Summary (by metric system unit name) | ||
*Note that all unit names when spelled out, except Celsius, are not capitalized, to distinguish the unit name from the same name for the person. The symbols for these named SI units, however, are capitalized.
| ampere (A) | 
| André-Marie Ampère (1775 - 1836) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Afars and Issas | C92 (Mi131) iC92 | Imperforate | 1975 | (200th anniv. birth) "Ampere" |
| Afars and Issas | C92 fdc | Stamp and (text) cancel and cachet on FDC | ||
| Albania | 2205b (Mi2293) | One of strip of 4 (2205 (a-d)) (Mi2292-2295) | 1986 | (150th anniv. death) "Andre Amper" |
| Albania | 2205a-d fdc | One of four stamps on FDC | ||
| Albania | 2206 (BL87) | On (center) label of SS1 | ||
| Altai | Unknown c (Mi?) | One of MS8 (a-h), also from imperforate MS8 (a-h), and from self-adhesive MS28 | 2011 | |
| Congo (People's Republic, Brazzaville) | 358 (Mi503) | 1975 | (200th anniv. birth) "André-Marie Ampère" | |
| France | 306 (Mi313) | 1936 | (100th anniv. death) "André-Marie Ampère" | |
| France | 306 maxi | Maxicard, also back | ||
| France | 306 proof1 | Un-issued proof | ||
| France | 306 proof2 | Un-issued proof (different) | ||
| France | 626 (Mi852) | 1949 | "Ampère" (at right in stamp, at left in maxicard design) | |
| France | 626 maxi | Maxicard, also back | ||
| France | 626 ds | Deluxe sheet | ||
| France | 626 proof | Signed proof | ||
| France | 625-628+C28 ds | Compound deluxe sheet (625-628+C28) | ||
| France | B339 (Mi1293) | 1960 | Ampère (cable-laying ship)3 | |
| France | B339 maxi | Maxicard | ||
| French Southern and Antarctic Territories | 554 (Mi944) | From MS20 (554a (20x 554)) | 2017 | "Vallée Ampère, Kerguelen" |
| Germany (East) | 1629 (Mi2029) | 1975 | (200th anniv. birth) "André-Marie Ampère" | |
| Île Roy (France) | Local1 | Local post stamp | 1975 | 200th anniv. birth "Ampère" |
| Île Roy (France) | Local2 | Local post stamp | ||
| Île Roy (France) | Local3 | Local post stamp | ||
| Île Roy (France) | Local4 | Local post stamp | ||
| Île Roy (France) | Local5 | Local post stamp, overprinted "specimen" | ||
| Ivory Coast | Unknown a (Mi?) | One of MS2 (a-b) [known illegal issue] | 2017 | "André-Marie Ampère" |
| Ivory Coast | Unknown fdc | MS2 on FDC | ||
| Macedonia (North) | Unknown (Mi911) | From MS9 (9x unknown) | 2020 | "200th anniv. Ampère's magnetic theory" and "André-Marie Ampère" |
| Macedonia (North) | Unknown fdc | Stamp and (pictorial) cancel and (North Macedonia Post) cachet on FDC | ||
| Mali | C258 (Mi505) | 1975 | "André-Marie Ampère"; (200th anniv. birth) | |
| Mali | Unknown b (Mi?) | One of MS2 (a-b) [known illegal issue] | 2011 | "André-Marie Ampère" |
| Mali | Unknown ms fdc | MS2 on FDC | ||
| Marshall Islands | 1032f (Mi2929) | One of MS20 (1032 (a-t)) (Mi2924-2943) | 2012 | "André-Marie Ampère" |
| Monaco | 1001 (Mi1186) | 1975 | "André Ampère"; (200th anniv. birth) | |
| Monaco | 1001 fdc1 | Stamp and (CEP) cachet on FDC | ||
| Monaco | 1001 fdc2 | Stamp and (Éditions J.F.) cachet on FDC | ||
| Monaco | 1001 fdc3 | FDC card | ||
| Monaco | 1001 maxi | Maxicard | ||
| Russia | 8037 (Mi2713) | From MS9 (8037a (9x 8037)) | 2019 | "Ampère meter" (ammeter, in Cyrillic text) |
| Russia | 8037 fdc | Stamp on FDC | ||
| United States | None | (Text) cancel and cachet (return address) on cover | 1914 | "Ampere NJ" (post office) |
3Ampère name for cable-laying ship is noted in description in Michel catalog.
| kelvin (K) | 
| Lord Kelvin (William Thomson) (1824 - 1907) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Some information on Kelvin is found here. | ||||
| Items with the symbol "K" only are not included here; items with a number and symbol "K" are listed in a separate temperature values and/or units section. | ||||
| Cuba | 2173 (Mi2268) | 1977 | Temperature unit name: "kelvin" | |
| Germany | KM332 | 10 euro (silver coin) | 2014 | 300th anniv. (degree) Fahrenheit scale; also kelvin (K) temperature scale |
| Guinea-Bissau | 540 (Mi702) | 1983 | "L. Kelvin" | |
| Guinea-Bissau | 537-540 fdc | One of four stamps on FDC | ||
| Hungary | 2420 (Mi3117) | 1976 | Temperature unit name: "kelvin" | |
| Mali | Unknown a (Mi?) | One of MS2 (a-b) [known illegal issue] | 2011 | |
| Marshall Islands | 1032t (Mi2943) | One of MS20 (1032 (a-t)) (Mi2924-2943) | 2012 | |
| Redonda (Antigua) | Unknown fdc (Mi? fdc) | (Fleetwood) cachet on FDC, also back | 1987 | (80th anniv. death) |
| Scotland (Clydesdale Bank) | P208 | 20 pounds (banknote), also back | 1972—1981 | "Lord Kelvin" |
| Scotland (Clydesdale Bank) | P208s | 20 pounds (banknote) overprinted "specimen", also back | ||
| Scotland (Clydesdale Bank) | P210 | 100 pounds (banknote), also back | 1972, 1975-1976 | "Lord Kelvin" |
| Scotland (Clydesdale Bank) | P210s | 100 pounds (banknote) overprinted "specimen" | ||
| Scotland (Clydesdale Bank) | P215 | 20 pounds (banknote), also back | 1982—1990 | "Lord Kelvin" |
| Scotland (Clydesdale Bank) | P217 | 100 pounds (banknote), also back | 1985, 1991 | "Lord Kelvin" |
| Scotland (Clydesdale Bank) | P223 | 100 pounds (banknote), also back | 1996 | "Lord Kelvin" |
| Scotland (Clydesdale Bank) | P229D (like P223) | 100 pounds (banknote), also back | 2001 | "Lord Kelvin" |
| Scotland (Clydesdale Bank) | P229Ds | 100 pounds (banknote) overprinted "specimen", also back | ||
| Serbia | 394 (Mi?) | 2007 | (100th anniv. death) | |
| Sweden | 1665a (Mi?) | Booklet of 5 (1665a (1661-1665)) (MiC127?) | 1987 | "Kelvin" (in booklet back text) |
| United States | None | (Text) cancel | 1907 | Kelvin AZ (post office) |
| (degree) Celsius (°C) | 
| Anders Celsius (1701 - 1744) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Some information on Celsius is found here. | ||||
| Items with the symbol "°C" only are not included here; items with a number and symbol "°C" are listed in a separate temperature values and/or units section. | ||||
| Cook Islands | KM1664 | $5. (silver coin) reverse, also obverse and also case | 2014 | 270th anniv. death; also thermometer |
| Finland France | 741 2016 sc1 (Mi?+2561 sc1) | Cachet on dual-country souvenir card | 1986 | "Celsius" |
| Finland France | 741 2016 sc2 (Mi?+2561 sc2) | Cachet on dual-country souvenir card (different) | ||
| France | 2016 sc (Mi2561 sc) | Cachet on souvenir card | 1986 | "Celsius" |
| Germany | KM332 | 10 euro (silver coin) | 2014 | 300th anniv. (degree) Fahrenheit scale; also degree Celsius (°C) temperature scale |
| Ghana | 573 (Mi633) | 1976 | Temperatures correctly given as degree "Celsius" | |
| Macedonia (North) | Unknown (Mi867) | From MS9 (9x unknown) | 2019 | 275th anniv. death "Anders Celsius", and thermometer |
| Macedonia (North) | Unknown fdc | Stamp and (pictorial) cancel and (North Macedonia Post) cachet on FDC | ||
| Nevis | 1185k (Mi1458) | One stamp and in (left) margin of MS17 (1185 (a-q + label)) | 2000 | "invents centigrade thermometer" |
| Spain | None | (Multi-color printed) cachet on (un-canceled) (Spanish Post) stamped envelope (from 2011) | 2013 | "Anders Celsius" |
| Spain | None | (Multi-color printed) cachet (different) on (un-canceled) (Spanish Post) stamped envelope (from 2011) | ||
| Spain | None | (Multi-color printed) cachet (different) on (un-canceled) (Spanish Post) stamped envelope (from 2011) | ||
| Spain | None | (Multi-color printed) cachet (different) on (un-canceled) (Spanish Post) stamped envelope (from 2011) | ||
| Spain | None | (Multi-color printed) cachet (different) on (un-canceled) (Spanish Post) stamped envelope (from 2011) | ||
| Spain | None | (Multi-color printed) cachet (different) on (un-canceled) (Spanish Post) stamped envelope (from 2011) | ||
| Sweden | None | Cinderella | ~1920 | Also thermometer |
| Sweden | 1402 (Mi1188) | One of booklet pane of 6 (1402a (6x 1402)) with booklet outside (front and back), also inside cover | 1982 | Also thermometer |
| Sweden | 1401-1402 fdc1 | Stamp and cachet on FDC | ||
| Sweden | 1401-1402 fdc2 | Stamp and cachet (different) on FDC | ||
| hertz (Hz) | 
| Heinrich Rudolf Hertz (1857 - 1894)1 |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Some information on Hertz is found here. Items showing a diagram or wave pattern related to Hertz' experimental discovery of electromagnetic radio waves are highlighted in yellow in the table below. |
||||
| Algeria | 331 (Mi430) | 1964 | Hertzian cable telephone line, Algiers-Annaba: "Faisceau Hertzien"5; (70th anniv. death) | |
| Canada | 1137-1138 fdc (Mi? fdc) | (?/Fleetwood) back of FDC, also front | 1987 | "Hertz"; (130th anniv. birth) |
| Congo (People's Republic, Brazzaville) | 574 (Mi799) | 1980 | Hertzian wave communication, Brazzaville: "Faisceaux Hertziens"5 | |
| Congo (People's Republic, Brazzaville) | 662 (Mi898) | 1982 | Hertzian wave communication network: "Faisceau Hertzien"5 | |
| Congo (People's Republic, Brazzaville) | 663 (Mi899) | |||
| Congo (People's Republic, Brazzaville) | 664 (Mi900) | |||
| Czechoslovakia | 953 (Mi1174) | 1959 | "Heinrich Hertz" | |
| Czechoslovakia | 951-953 fdc | One of three stamps on FDC | ||
| France | None | Cachet on postal card | 1987 | 100th anniv. Hertz' experimental discovery of electromagnetic radio waves; "Henri Hertz" |
| Gabon | 350 (Mi561) | 1975 | Hertzian wave transmitter network: "Faisceaux Hertziens"5; (80th anniv. death, in 1974) | |
| Gabon | Unknown ms (Mi?) Unknown ims | In (upper-right) margin of MS2 (a-b) In (upper-right) margin of imperforate MS2 (a-b) | 2014 | "Heinrich Hertz's apparatus"; (120th anniv. death) |
| Gabon | Unknown fdc | MS2 on FDC | ||
| Germany (East) | 354 (Mi576) | 1957 | (100th anniv. birth) | |
| Germany (East) | 354 maxi | Maxicard | ||
| Germany (East) | 353-354 fdc | One of two stamps on FDC | ||
| Germany (East) | KM23 | 5 marks (silver coin) | 1969 | (75th anniv. death) |
| Germany (West) | 762 (Mi252) | Also booklet pane (762a) and booklet front (762b) | 1957 | 100th anniv. birth |
| Germany (West) | 762 essay1 | Essay | ||
| Germany (West) | 762 essay2 | Essay (different) | ||
| Germany (West) | 762 essay3 | Essay (different) | Hertz and electromagnetic radio wave pattern that he discovered experimentally | |
| Germany (West) | 1005 (Mi?) | 1969 | Electromagnetic radio wave pattern as discovered experimentally by Hertz | |
| Germany (West) | 1393 (Mi1176) | 1983 | Electromagnetic radio wave pattern as discovered experimentally by Hertz; (90th anniv. death, in 1984) | |
| Germany (West) | 1393 fdc1 | Stamp and (pictorial) cancel and cachet on FDC | ||
| Germany (West) | 1393 fdc2 | Stamp and (pictorial) cancel and cachet (different) on FDC | ||
| Germany (West) | 1393 fdc3 | Stamp and (pictorial) cancel and cachet (different) on FDC | ||
| Germany (West) | 1393 maxi1 | Maxicard | ||
| Germany (West) | 1393 maxi2 | Maxicard (different) | ||
| Germany (West) | 1393 maxi3 | Maxicard (different, Bonn cancel) | ||
| Germany (West) | 1393 maxi4 | Maxicard (same, Esslingen am Neckar cancel) | ||
| Germany (West) | None | (Pictorial) cancel on cover | 1987 | 100th anniv. Hertz' discovery of radio waves; (130th anniv. birth) "Heinrich Hertz"; electromagnetic radio wave pattern as discovered experimentally by Hertz |
| Germany | 1822 (Mi1710) | 1994 | 100th anniv. death; electromagnetic radio wave pattern as discovered experimentally by Hertz | |
| Germany | 1822 fdc1 | Stamp and (Bonn) cancel on FDC | ||
| Germany | 1822 fdc2 | Stamp and (Bonn) cancel and cachet on FDC | ||
| Germany | 1822 fdc3 | Stamp and (Bonn) cancel and cachet (different) on FDC | ||
| Germany | 1822 fdc4 | Stamp and (Berlin) cancel and cachet (different) on FDC | ||
| Germany | 1822 folder | FDC folder | ||
| Germany | 1822 maxi | Maxicard | ||
| Germany | 1822 sc | Souvenir card | ||
| Germany | 1822 essay1 | Essay | ||
| Germany | 1822 essay2 | Essay (different) | ||
| Germany | 1822 essay3 | Essay (different) | 100th anniv. death | |
| Germany | 1822 essay4 | Essay (different) | ||
| Germany | None | (Pictorial) cancel | 1994 | |
| Germany | None | Meter | 1997 | 110th (not 100th, as in the meter) anniv. Hertz' discovery of electromagnetic radio waves; electromagnetic radio wave pattern as discovered experimentally by Hertz |
| Germany | None | (Pictorial) cancel and cachet on cover | 2011 | |
| Germany | 2754 (Mi3036) | From MS10 (2754a (10x 2754)) | 2013 | 125th anniv. Hertz' experimental discovery of electromagnetic radio waves in the pattern shown |
| Germany | 2754 fdc1 | Stamp and (Bonn) cancel on FDC | ||
| Germany | 2754 fdc2 | Stamp and (Berlin) cancel on FDC | ||
| Germany | 2754 cover1 (Mi3036 cover1) | Stamp and cachet on (un-canceled) cover | 2019 | 125th anniv. death |
| Germany | 2754 cover2 (Mi3036 cover2) | Stamp and (pictorial) cancel and cachet (same) on cover | ||
| Germany | 2754 cover3 (Mi3036 cover3) | Stamp and (pictorial) cancel (different) and cachet (same) on cover | ||
| Grenada | 3938a (Mi6597) | One of MS4 (3938 (a-d)) (Mi6597-6600) | 2013 | "Heinrich Hertz" |
| Guinea-Bissau | 539 (Mi701) | 1983 | "H.R. Hertz" (90th anniv. death, in 1984) | |
| Guinea-Bissau | 537-540 fdc | One of four stamps on FDC | ||
| Malagasy Republic | 339 (Mi491) | 1963 | Hertzian cable, Tananarive-Fianarantsoa: "Faisceau Hertzien"5; (70th anniv. death, in 1964) | |
| Malagasy Republic | 339 ds (BL?) | Deluxe sheet (339) | ||
| Mali | Unknown a (Mi?) | One of MS2 (a-b) [known illegal issue] | 2011 | |
| Mexico | C332 (Mi1255) | 1967 | (110th anniv. birth) | |
| San Marino | 1263 (Mi?) | 1992 | ||
| San Marino | 1263 fdc1 | Stamp and (pictorial) cancel on FDC | ||
| San Marino | 1263 fdc2 | Stamp and (pictorial) cancel and cachet on FDC | ||
| United States | None | (Coverscape) cachet on cover | 2012 | 155th anniv. birth |
1The hertz unit was not named after Heinrich Hertz' nephew, Gustav Ludwig Hertz (1887 - 1975), a 1925 Nobel Prize winner in physics, who has also been honored on many stamps.
5Hertzian waves are electromagnetic waves produced by oscillations in an electric circuit, as a radio or radar wave: first investigated by H.R. Hertz; "Faisceau Hertzien" or "Faisceaux Hertziens": antenna-based wireless transmission and reception of electromagnetic signals.
| newton (N) | 
| Sir Isaac Newton (1642 - 1727)2 |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Some information on Newton is found here. | ||||
| Ajman | Mi994 | 1971 | Newton (in inset at upper-left) | |
| Ajman | Mi994 ds | Deluxe sheet (Mi994), from deluxe proof sheet of 8 | ||
| Ajman | Mi994 proofs | Proof sheet of 15 | ||
| Ajman State | Mi2781A-2788A_label Mi2781B-2788B_label | Label from MS8 (Mi2781A-2788A + 8 labels) Label from imperforate MS8 (Mi2781B-2788B + 8 labels) | 1972 | (330th anniv. birth) |
| Alderney (Great Britain) | KM127a | 5 pound (silver coin), also obverse | 2006 | |
| Altai | Unknown a (Mi?) | One stamp and in (left) margin of MS8 (a-h), also from imperforate MS8 (a-h), and from and in centre of self-adhesive MS28 | 2011 | (370th anniv. birth, in 2012) |
| Ascension Island | 142 (Mi142) | 1971 | ||
| Ascension Island | 142a | Booklet pane of 4 (4x 142) | ||
| Ascension Island | 143b | Booklet of 24 (4x (138-143)), with booklet front, also booklet back | ||
| Ascension Island | 385 (Mi394) | 1986 | "Newton's reflector telescope" | |
| Belgium | B1059 fdc (Mi? fdc) | FDC back, also front | 1987 | "Newton"; (260th anniv. death) |
| Benin | C276 (Mi117) iC276 | Imperforate | 1977 | 250th anniv. death |
| Benin | C276+C278 fdc | One of two stamps and (EDILA) cachet on FDC | ||
| Benin | 1165 (BL50) | On stamp of SS1 | 1999 | "Isaac Newton" locomotive |
| Bosnia and Herzegovina (Serb Admin.) | 586 (Mi745) | 2018 | 375th anniv. birth | |
| Bosnia and Herzegovina (Serb Admin.) | 586 fdc | Stamp and (pictorial) cancel and (Srpske Post) cachet on FDC, also back | ||
| Bulgaria | 3793 (Mi4079) | 1993 | (350th anniv. birth) | |
| Burundi | 759 (BL141) | SS1 | 2000 | |
| Central African Republic | 780 (Mi1188) i780 | Imperforate | 1985 | "Newton" telescope |
| Central African Republic | 780a (BL359) i780a | SS1 (780) Imperforate SS1 (i780) | ||
| Central African Republic | 779-780 fdc | One of two stamps on FDC | ||
| Central African Republic | 781 (Mi1189) i781 | Imperforate | ||
| Central African Republic | 781a (BL360) i781a | SS1 (781) Imperforate SS1 (i781) | ||
| Central African Republic | Unknown c (Mi?) | One of MS4 (a-d) | 2015 | "Isaac Newton (1642 - 1727) and white light" (in French text) |
| Central African Republic | Unknown fdc | MS4 on FDC | ||
| Chad | 440B (BL151) i440B | SS1, gold foil Imperforate SS1, gold foil | 1983 | (340th anniv. birth, in 1982) |
| Chad | 806g (Mi?) | One of MS9 (806 (a-i)) | 1999 | |
| Chad | 806g ss (BL?) | On stamp of SS1 (806g) | ||
| Chad | Unknown ss (BL?) | In (upper-left) margin of SS1 | 2009 | |
| Chad | Unknown ss fdc | SS1 on FDC | ||
| Chad | Unknown a (Mi?) Unknown ia | One of MS2 (a-b) One of imperforate MS2 (a-b) | 2014 | "Isaac Newton" |
| Chad | Unknown ss (BL?) Unknown iss | SS1 Imperforate SS1 | ||
| China (People's Republic) | None | Phonecard | 200x | |
| China (People's Republic) | None | Phonecard (different) | 2005 | |
| China (People's Republic) | None | Phonecard (different) | 2005? | |
| China (People's Republic) | None | Phonecard (different) | 2005 | |
| China (People's Republic) | None | Phonecard (different) | 2005? | |
| China (People's Republic) | None | Phonecard (different) | 2005 | |
| China (People's Republic) | None | Postal card back8, also front | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | |
| Comoro Islands | B4 (Mi854A-861A) iB4 (Mi854B-861B) | In (lower) margin of MS8 (B4 (a-h)) In (lower) margin of imperforate MS8 (iB4 (a-h)) | 1988 | "Newton" (in lower margin text) |
| Comoro Islands | Unknown label (Mi2296-2301 label) | Label from MS6 (a-f + label) | 2009 | |
| Congo (People's Republic, Brazzaville) | C238 (Mi588) | 1977 | (250th anniv. death) | |
| Congo Republic | Mi1693 | One of MS6 (Mi1691-1696) | 2000 | |
| De La Rue (PLC) | None | "1" (test banknote), also back | ? | |
| Djibouti | Unknown d (Mi?) Unknown id | One of MS4 (a-d) One of imperforate MS4 (a-d) | 2006 | |
| Djibouti | Unknown b (Mi?) | One of MS6 (a-f) | 2010 | |
| Djibouti | Unknown a+selvedge (Mi?+selvedge) | One of MS3 (a-f) and selvedge | ||
| Djibouti | Unknown ds (BL?) | Deluxe sheet (a) | ||
| Dubai | C57 (Mi398) | 1971 | ||
| Fiji | 551 (Mi545) | 1986 | "Newton's reflector" telescope | |
| Finland France | 741 2016 sc1 (Mi?+2561 sc1) | Cachet on dual-country souvenir card | 1986 | "Newton" |
| Finland France | 741 2016 sc2 (Mi?+2561 sc2) | Cachet on dual-country souvenir card (different) | ||
| France | 861 (Mi1171) | 1957 | ||
| France | 2016 sc (Mi2561 sc) | Cachet on souvenir card | 1986 | "Newton" |
| Gabon | Unknown (Mi?) | 2011 | ||
| Gabon | Unknown ss (BL?) | SS1 | ||
| Gabon | Unknown ss fdc | SS1 and cachet on FDC | ||
| Gabon | Unknown ms (Mi?) Unknown ims | MS2 (a-b) Imperforate MS2 (a-b) | 2014 | |
| Gabon | Unknown fdc | MS2 and cachet on FDC | ||
| Germany (West) | 1329 fdc (Mi1050 fdc) | (Fleetwood) back of FDC, also front | 1980 | "Sir Isaac Newton" (in text only) |
| Germany | None | Cinderella (poster stamp) | early-1900s | |
| Germany | 1771 (Mi1646) | 1993 | "Isaac Newton"; (350th anniv. birth) | |
| Germany | 1771 black | Blackprint | ||
| Germany | 1771 holo | Hologram | ||
| Germany | 1771 folder | FDC folder | "Isaac Newton"; 350th anniv. birth | |
| Germany | 1771 fdc1 | Stamp and (pictorial) cancel and (ETABO) cachet on FDC | ||
| Germany | 1771 fdc2 | Stamp and (pictorial) cancel and (FIDACOS) cachet on FDC | ||
| Germany | 1771 fdc3 | Stamp and (pictorial) cancel and (Jill) cachet on FDC | ||
| Germany | KM332 | 10 euro (silver coin) | 2014 | 300th anniv. (degree) Fahrenheit scale; also degree Newton (°N) temperature scale |
| Ghana | 1031 (Mi1158) i1031 | Imperforate | 1987 | "Wedgewood honors Newton"; (260th anniv. death) |
| Ghana | 1130 (Mi1276) | 1031 surcharged | 1989 | "Wedgewood honors Newton" |
| Ghana | 1130a (Mi1280) i1130a | 1030 overprinted with Halley's Comet logo i1030 overprinted with Halley's Comet logo | ||
| Gibraltar | 1201 (Mi?) | From MS8 (1201a (8x 1201)) | 2009 | |
| Gibraltar | 1198-1201 fdc | One of four stamps on FDC | ||
| Great Britain | None | (Halfpenny) trade token, also reverse | 1793 | |
| Great Britain | None | Medallion, also reverse | ~1970 | |
| Great Britain | P377a | 1 pound (banknote) | 1978—1980 | |
| Great Britain | P377b | 1 pound (banknote), also back | 1981—1984 | |
| Great Britain | 1172 (Mi1101) | 1987 | "Sir Isaac Newton"; (260th anniv. death) | |
| Great Britain | 1172 fdc1 | Stamp and cachet on FDC | ||
| Great Britain | 1172 fdc2 | Stamp and (Fleetwood) cachet on FDC, also back | ||
| Great Britain | 1173 (Mi1102) | |||
| Great Britain | 1174 (Mi1103) | |||
| Great Britain | 1175 (Mi1104) | |||
| Great Britain | 1172-1175 fdc | One of four stamps and (pictorial) cancel and (Cotswold/BPCPA) cachet on FDC | ||
| Great Britain | None | (Pictorial) cancel | 1987 | (260th anniv. death) |
| Great Britain | None | (Pictorial) cancel (different) | ||
| Great Britain | None | (Pictorial) cancel (different) | ||
| Great Britain | None | (Pictorial) cancel (different) | ||
| Great Britain | None | (Pictorial) cancel (different) | ||
| Great Britain | None | Postcard back, also front | 1987 | |
| Great Britain | None | Postcard back, also front | 1988 | |
| Great Britain | 1337 (Mi1297) | 1990 | (Newton's telescope)6 (at left in stamp, and in the FDCs with the Royal Mail cachet) | |
| Great Britain | 1337 card | PHQ card | ||
| Great Britain | 1337 fdc | Stamp on FDC | ||
| Great Britain | 1336-1339 fdc1 | One of four stamps on FDC (Cotswold and Stuart / BPCPA cachet, Greenwich cancel) | ||
| Great Britain | 1336-1339 fdc2 | One of four stamps on FDC (Mercury cachet; Greenwich cancel, different), also back | ||
| Great Britain | 1336-1339 fdc3 | One of four stamps on FDC (Mercury cachet; Armagh cancel), also back | ||
| Great Britain | 1336-1339 fdc4 | One of four stamps and (Royal Mail) cachet on FDC (Brighton, East Sussex cancel) | ||
| Great Britain | 1336-1339 fdc5 | One of four stamps and (Royal Mail) cachet on FDC (Northampton cancel) | ||
| Great Britain | 1336-1339 fdc6 | One of four stamps on FDC (Benham cachet, Armagh, N. Ireland cancel) | ||
| Great Britain | 1870 (Mi1822A) | 1999 | "Newton" | |
| Great Britain | 1870b (BL7) | MS4 (4x 1870a (Mi1822D), same as 1870 except changed perforations) | ||
| Great Britain | 1867-1870 fdc (Mi1819+1820C+1821C+1822A fdc) | One of four stamps and (Benham) cachet on FDC | ||
| Great Britain | 2317a folder (Mi2341 folder) | Folder front with MS10 (2317a (10x 2317 + 10 labels)), also back | 2009 | "Sir Isaac Newton" |
| Great Britain | None | Cachet on cover | 2009 | Newton (at left) |
| Great Britain | 2748 (Mi?) | One of block of 10 (2756a (2747-2756)), or one of booklet pane of 4 (2754a (2748-2749+2x 2754)), from 2756a presentation pack | 2010 | |
| Great Britain | 2756a fdc | One of block of 10 stamps on FDC | ||
| Great Britain | None | (Pictorial) cancel and cachet on cover | 2010 | |
| Great Britain | None | (Pictorial) cancel (different) and cachet (different) on cover | 2010 | |
| Great Britain | None | (Pictorial) cancel | 2010 | |
| Great Britain | None | (Pictorial) cancel (different) | 2010 | (Newton's telescope) |
| Great Britain | 2317 ms (Mi2341 ms) | On 10 labels and in (surrounding) margin of MS10 (10x 2317 + 10 labels), also detail | 2010 | Newton; reproductions of Great Britain 1172-1175 (in lower-right margin) |
| Grenada | 1535 (Mi1687) | 1987 | (260th anniv. death) | |
| Grenada | B14 (Mi1974) | 1989 | "Halley publishes Newton's Principia, 1687" | |
| Grenada | 2932d (Mi?) | Two stamps and in (left) margin of MS17 (2932 (a-q + label)) | 2000 | "1666, Newton builds first reflecting telescope" |
| Grenada | 2932p (Mi?) | "1666, Sir Isaac Newton formulates law of gravitation" | ||
| Grenada | 3812 (Mi6383-6386) | On one of MS4 (3812 (a-d)) | 2011 | |
| Grenada | 3813 (BL801) | In (right) margin of SS1 | ||
| Grenada | 3813 fdc | SS1 on FDC | ||
| Grenada Grenadines | 909 (Mi914) | 1987 | (260th anniv. death) | |
| Grenada Grenadines | 1539 (Mi1711) | 1993 | (350th anniv. birth), also (Newton's telescope)6 | |
| Guinea Republic | 987a (BL216) | In (upper-right) margin of SS1 (987) | 1986 | "Newton", and "Telescope de Newton" |
| Guinea Republic | 988 (Mi1110A) i988 (Mi1110B) | Imperforate | ||
| Guinea Republic | 988a (BL217) i988a | SS1 (988) Imperforate SS1 (i988) | ||
| Guinea Republic | 989b (Mi1106-1111) | On one of MS6 (984-989) | ||
| Guinea Republic | 990 (BL212) i990 | In (left) margin of SS1 In (left) margin of imperforate SS1 | (possibly) Newton (and Halley) | |
| Guinea Republic | BL220 | In (upper) margin of SS1 | 1986 | Newton (with Halley) |
| Guinea Republic | 1262c (Mi1483A) i1262c (Mi1483B) | One of strip of 3 (1262 (a-c)) (Mi1482-1484) One of imperforate strip of 3 (i1262 (a-c)) | 1994 | "Sir Isaac Newton" |
| Guinea Republic | BL1484 | SS1 | 2007 | "Télescope de Isaac Newton" (in text on stamp); also Christian Huygens |
| Guinea Republic | BL1484 fdc | SS1 on FDC | ||
| Guinea Republic | Mi5883A Mi5883B | One of MS6 (Mi5880A-5885A) One of imperforate MS6 (Mi5880B-5885B) | 2008 | |
| Guinea Republic | Mi5880A-5885A fdc | MS6 on FDC | ||
| Guinea-Bissau | Unknown (Mi?) | 2003 | ||
| Guinea-Bissau | Unknown ss (BL?) Unknown iss | SS1 (stamp) Imperforate SS1 | 2003 | |
| Guinea-Bissau | Mi3934A Mi3934B | One of MS6 (Mi3930A-3935A) One of imperforate MS6 (Mi3930B-3935B) | 2008 | |
| Guinea-Bissau | Mi3930A-3935A_ms6 fdc1 Mi3930B-3935B_ms6 fdc1 | MS6 on FDC Imperforate MS6 on FDC | ||
| Guinea-Bissau | Mi3930A-3935A_ms6 fdc2 | MS6 on FDC (different) | ||
| Guinea-Bissau | Mi4447A Mi4447B | From MS5 (Mi4444A-4448A) Imperforate | 2009 | "Isaac Newton" |
| Guinea-Bissau | BL725A BL725B | In (lower-left and center-right) margins of SS1 In (lower-left and center-right) margins of imperforate SS1 | 2009 | "Isaac Newton" |
| Hungary | 2485+label (Mi3199) i2485+label | Stamp and label, from MS4 (2485a (4x 2485 + 4 labels)) Imperforate stamp and label, from imperforate MS4 (i2485a (4x i2485 + 4 labels)) | 1977 | "Isaac Newton"; (250th anniv. death) |
| India | 767 (Mi?) | 1977 | "Newton" | |
| Ivory Coast | Unknown ss (BL?) | SS1 [known illegal issue] | 2012 | (370th anniv. birth) |
| Ivory Coast | Unknown ms (Mi?) | MS2 (a-b) | 2013 | 370th anniv. birth |
| Ivory Coast | Unknown ms (Mi?) | MS2 (a-b) | 2016 | (290th anniv. death, in 2017) |
| Ivory Coast | Unknown fdc1 | MS2 and cachet on FDC | ||
| Ivory Coast | Unknown fdc2 | MS2 and cachet (different) on FDC | ||
| Ivory Coast | Unknown ss (BL?) | SS1 | ||
| Ivory Coast | Unknown fdc1 | SS1 and cachet on FDC | ||
| Ivory Coast | Unknown fdc2 | SS1 and cachet (different) on FDC | ||
| Jersey (Great Britain) | 1961 (BL?) | In (upper-left) margin of SS1 | 2016 | "Isaac Newton"; (also on the cover and page1 of the Presentation Pack) |
| Jersey (Great Britain) | 1961 fdc | SS1 on FDC | ||
| Jersey (Great Britain) | 1961a | In (upper-left) margin of SS1, overprinted | ||
| Jersey (Great Britain) | 1961a fdc | SS1, overprinted, on FDC | ||
| Jersey (Great Britain) | 1955-1960 pack | Presentation pack, also back and page1 with page1 detail and page2 | ||
| Korea (North) | 2134 (Mi2185) | Stamp-on-stamp: France 861 | 1981 | |
| Korea (North) | 3265 (Mi3483) | 1993 | (350th anniv. birth) | |
| Korea (North) | 3266 (Mi3484) | |||
| Korea (North) | 3267 (Mi3485) | |||
| Korea (North) | 3268 (Mi3486) | |||
| Korea (North) | 3269 (Mi3487) | |||
| Korea (North) | 3265-3269 proofs | Deluxe proofs | ||
| Korea (North) | 3265a (BL?) | MS3 (3265-3266+3269) | ||
| Korea (North) | 3265b (BL?) | MS3 (3265+3267-3268) | ||
| Korea (North) | 3878 (BL?) | In (lower-middle) margin of MS3 (3878 (a-c)) | 1999 | |
| Korea (North) | 3878 var | In (lower-middle) margin of MS3, red missing | ||
| Korea (North) | 4597 (Mi5113) | 3267 surcharged | 2006 | |
| Korea (South) | 1675 bk (Mi? bk) | Booklet of 4 front | 1992 | Newton's apple (by the apple itself and also the artistic spectrum of colors) |
| Korea (South) | 1675 fdc | (Korea Post) cachet on FDC | ||
| Laos | 581 (Mi770) | 1984 | ||
| Laos | 580-583 fdc | One of four stamps on FDC | ||
| Lesotho | 578 (Mi630) | 1987 | (260th anniv. death) | |
| Madagascar (Malagasy Republic) | 1100b (Mi1479) | One of MS16 (1100 (a-p)) | 1992 | (350th anniv. birth) "Sir Isaac Newton" |
| Madagascar | Unknown c (Mi?) | One of MS4 (a-d) [known illegal issue] | 2018 | "Isaac Newton" |
| Malawi | Unknown a (Mi?) | One of MS2 (a-b) | 2008 | |
| Malawi | Unknown b (Mi?) | One of MS2 (a-b) | 2011 | |
| Malawi | Unknown fdc | On one of two MS2 on FDC | ||
| Maldive Islands | 1268 (Mi1279) | 1988 | ||
| Mali | C301 (Mi570) | 1977 | (250th anniv. death) | |
| Mali | C301 ds (BL?) | Deluxe sheet (C301) | ||
| Mali | Unknown a (Mi?) Unknown ia | One of MS2 (a-b) Imperforate | 2006 | |
| Mali | Unknown ss (BL?) | SS1 | 2009 | Also XMM / Newton satellite |
| Mali | Unknown ss fdc | SS1 and cachet on FDC | ||
| Mali | Unknown a (Mi?) | One of MS2 (a-b) [known illegal issue] | 2011 | |
| Mali | Unknown ms fdc | MS2 and cachet on FDC | ||
| Mali | Unknown b (Mi?) | One of MS2 (a-b) [known illegal issue] | 2012 | 285th anniv. death; also XMM / Newton satellite |
| Marshall Islands | 963d (Mi2570) | Two of MS10 (963 (2x (a-e))) (2x (Mi2567-2571)) | 2010 | |
| Marshall Islands | 1032o (Mi2938) | One of MS20 (1032 (a-t)) (Mi2924-2943) | 2012 | |
| Mauritius | 626 (Mi622) | 1986 | "Newton's contemporary reflector" telescope | |
| Mexico | C377 (Mi1336) | 1971 | ||
| Monaco | 1601 (Mi1837) | 1987 | Newton's Law of Universal Gravitation; (260th anniv. death) | |
| Monaco | 1601 fdc | Stamp and (Lollini) cachet on FDC | ||
| Mongolia | 951e (Mi1051) | From MS9 (951 (a-i)) (Mi1047-1055) | 1977 | (250th anniv. death) |
| Mongolia | 951a-951i fdc | One of nine stamps on FDC | ||
| Mongolia | KM182 | 500 tugrik (silver coin) | 1999 | |
| Mongolia | 2504h (Mi3387) | One of MS20 (2504 (a-t)) (Mi3380-3399) | 2001 | |
| Mongolia | 2791 (Mi?) | 2014 | ||
| Montserrat | 1357b (Mi1753) | One stamp and in (lower-right) margin of MS4 (1357 (a-d)) (Mi1752-1755) | 2015 | "Sir Isaac Newton" |
| Mozambique | Unknown a (Mi?) Unknown ia | One of MS6 (a-f) One of imperforate MS6 (a-f) | 2001 | |
| Mozambique | Unknown ss (BL?) | On stamp of SS1 | ||
| Mozambique | 2537 (Mi5463-5468) | MS6 (2537 (a-f)) | 2012 | "285th anniv. death" (in Portuguese text); also XMM / Newton satellite |
| Mozambique | 2537 fdc | MS6 on FDC | ||
| Mozambique | 2567 (BL584) | SS1 | ||
| Mozambique | 2567 fdc | SS1 on FDC | ||
| Nagaland (India) | Local | Imperforate | 1972 | "Newton's telescope" |
| Netherlands | 731 (Mi1345) | 1988 | "Newton"'s prism | |
| Nevis | 1185o (Mi1472) | One stamp and in (left) margin of MS17 (1185 (a-q + label)) | 2000 | |
| Nicaragua | 878 (Mi1614) 878 back | 1971 | Newton's Law of Universal Gravitation: "Ley de Newton" | |
| Nicaragua | 1489 (Mi2826) | 1985 | "Telescopio de Newton" | |
| Nicaragua | 1985d (Mi3295) | One of MS16 (1985 (a-p)) (Mi3292-3307) | 1994 | |
| Niger | C124 (Mi249) | 1970 | ||
| Niger | C124 proof | Signed proof | ||
| Niger | C141 (Mi267) | C124 overprinted | 1970 | |
| Northern Territories Local Post (Japan) | Local b | One of MS6 (a-f) | 2011 | (370th anniv. birth, in 2012) |
| Northern Territories Local Post (Japan) | Local ss | Local post SS1 (stamp and label) | ||
| Odessa | Local ms | Local post MS4 (a-d) | 200? | |
| Paraguay | 871 (Mi1431) i871 (Mi1439) | Imperforate with changed colors | 1965 | |
| Paraguay | 874 (Mi1434) i874 (Mi1442) | Imperforate with changed colors | ||
| Poland | 884 (Mi1136) | 1959 | "Izaak Newton" | |
| Poland | 883-885 fdc | One of three stamps on FDC | ||
| Poland | None | Printed stamp on postal card (Fisher #534) | 1972 | "Isaac Newton"; (330th anniv. birth, in 1973) |
| Redonda (Antigua) | 8737 (Mi?) | 1987 | (260th anniv. death) | |
| Redonda (Antigua) | Unknown fdc (Mi? fdc) | (Fleetwood) back of FDC, also front | "Newton" (in back text); (260th anniv. death) | |
| Romania | None | Cachet on stamped envelope | 2003 | |
| Russia (USSR) | 5601 (Mi5758) | Stamp and label | 1987 | 300th anniv. publication of Principia; (260th anniv. death) |
| Russia (USSR) | 5601 fdc | Stamp and label and (pictorial) cancel on FDC | ||
| Russia (USSR) | 5601 fdc2 | Stamp and label and (pictorial) cancel and cachet on FDC, also back | ||
| Rwanda | Unknown (Mi?) | 1999 | ||
| Rwanda | Unknown f (Mi?) | One of MS12 (a-l) | 2009 | |
| St. Pierre and Miquelon | C56 (Mi501) | 1974 | ||
| St. Thomas and Prince Islands | Mi4039-4042_ms4 | In (upper-right) margin of MS4 (Mi4039-4042) | 2009 | (Newton's telescope)6 |
| St. Thomas and Prince Islands | Mi4039-4042_ms4 fdc | MS4 on FDC | ||
| St. Vincent | 920 (Mi934) | 1986 | (Newton's telescope)6 | |
| St. Vincent | 2699 (Mi?) | 1999 | ||
| Sakhalin (Russia) | Local ss | In (lower) margin of local post SS1 | 2010 | Newton medallion |
| San Marino | 1023 (Mi1253) | 1982 | "Isaac Newton" | |
| San Marino | 1022-1023+1027+1029 fdc | One of four stamps on FDC | ||
| San Marino | 1024-1026+1028 fdc | (Venetia) cachet on FDC | ||
| Sierra Leone | 2254h (Mi3398) | One stamp and in (left) margin of MS17 (2254 (a-q + label)) (Mi3391-3407) | 2000 | "1642: birth of Isaac Newton" |
| Sierra Leone | Unknown g (Mi?) Unknown ig | One of MS8 (a-h) One of imperforate MS8 (a-h) | 2011 | (370th anniv. birth, in 2012) |
| Sierra Leone | Unknown margin (Mi? margin) | In (upper-right) margin of MS8 (a-h) (different) In (upper-right) margin of imperforate MS8 (a-h) | ||
| Sierra Leone | Unknown margin (Mi? margin) | In (right) margin of MS8 (a-h) (different) In (right) margin of imperforate MS8 (a-h) | ||
| Sierra Leone | Unknown margin (Mi? margin) | In (right) margin of MS8 (a-h) (different) In (right) margin of imperforate MS8 (a-h) | ||
| Sierra Leone | 5109 (Mi10569-10572) | MS4 (5109 (a-d)) | 2018 | "Isaac Newton" |
| Sierra Leone | 5127 (BL1620) | SS1 (Mi10573) | ||
| South Africa | 995a+selvedge (Mi?+selvedge) 955e+selvedge (Mi?+selvedge) | In (surrounding) margin of MS10 (955 (a-j)) | 1996 | |
| Staffa (Scotland) | Local | Local post stamp | 1985? | (Newton's telescope)6 |
| Togo | 1365 (BL286) | SS1 (stamp) | 1986 | |
| Togo | 1409 (BL291) | SS1, 1365 overprinted in silver | 1986 | |
| Togo | Unknown a (Mi4265) | One stamp and in (upper-right) margin of MS3 (a-c) (Mi4265-4267) | 2011 | Also XMM / Newton satellite |
| Tristan da Cunha | 892 (Mi?) | 2010 | ||
| Tuvalu | KM17 | 20 dollars (silver coin), also obverse | 1993 | |
| Uganda | 566 (Mi556) | 1987 | (260th anniv. death) | |
| Uganda | 566 fdc | Stamp on FDC (Fleetwood cachet), also back | ||
| Umm Al Qiwain | Mi1073A Mi1073B | One of MS16 (Mi1066A-1081A) One of imperforate MS16 (Mi1066B-1081B) | 1972 | (Newton's locomotive ?)7 |
| Umm Al Qiwain | Mi1073 ds | Deluxe sheet (Mi1073) | ||
| Umm Al Qiwain | Mi1089A Mi1089B | One of MS16 (Mi1082A-1097A) One of imperforate MS16 (Mi1082B-1097B) | ||
| United States | 1759 cover1 (Mi1356 cover1) | (Midwest Stamp and Coin Show Station) cancel on cover | 1978 | |
| United States | 1759 cover2 (Mi1356 cover2) | (Midwest Stamp and Coin Show Station) cancel on cover (different cancel date) | ||
| United States | 1919 sc (Mi1488 sc) | (Reader's Digest) souvenir card back, also front (with 1919 fdc) | 1981 | "Isaac Newton" |
| United States | None | Insert from cover, also insert back and cover front | 1986 | "Isaac Newton" |
| United States | 3388 fdc (Mi3284 fdc) | (Fleetwood/Chris Calle) cachet on FDC | 2000 | |
| United States | None | (Coverscape) cachet on cover | 2010 | |
| United States | None | (Coverscape) cachet on cover | 2012 | (370th anniv. birth) |
| Uruguay | 1629 (Mi2193) | 1996 | ||
| Vietnam | 1600 (Mi1658) i1600 | Imperforate | 1986 | |
| Yemen Arab Republic | 260F (Mi909A) i260F (Mi909B) 260m (Mi916) | From MS12 (12x 260F) From imperforate MS12 (12x i260F) From imperforate MS12 (12x 260m) with changed colors | 1969 | |
| Yemen Mutawakelite Kingdom | Mi863 | From MS6 (6x Mi863) | 1969 | |
| Yemen Mutawakelite Kingdom | Mi863B o/p | Mi863B overprinted in red | 1972 | |
| Yugoslavia | 2502c (Mi2994) | One of booklet pane of 7 (2502 (a-g + 2 labels)), also booklet outside (front and back) (MH10, Mi2992-2998) | 2000 | (Newton's telescope)6 (but Galileo depicted beside the telescope) |
2Isaac Newton was born on 25 December 1642 on the Julian Calendar. On the Gregorian Calendar, Newton's birth occurred 4 January 1643. Note also the XMM / Newton satellite (launched 1999-12-10).
6The telescopes on these items are similar in design to those identified as "Newton's reflector" or "Newton's telescope" on other items.
7The locomotive on this item is similar in design to that credited to "Isaac Newton" on Benin 1165.
| pascal (Pa) | 
| Blaise Pascal (1623 - 1662) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Some information on Pascal is found here. | ||||
| Cambodia | 2057 (Mi2152) | In (upper-right) corner | 2001 | (picture only) |
| Central African Republic | 1359 (Mi2573) i1359 | Imperforate | 2000 | |
| Central African Republic | 1359a (BL649) i1359a | SS1 (1359) Imperforate SS1 (i1359) | ||
| Djibouti | Unknown a (Mi?) | One of MS6 (a-f) | 2010 | |
| Djibouti | Unknown a+selvedge (Mi?+selvedge) | One of MS3 (a-f) and selvedge | ||
| France | None | (Text) cancel on cover | 1867 | rue Pascal, Paris |
| France | None | (Text) cancel on cover | 1872 | rue Pascal, Paris |
| France | B181 (Mi626) iB181 | Imperforate | 1944 | |
| France | B181 maxi1 | Maxicard | ||
| France | B181 maxi2 | Maxicard (different) | ||
| France | B181 maxi3 | Maxicard (different) | ||
| France | 1038 (Mi1398) i1038 | Imperforate | 1962 | "Pascal" (300th anniv. death) |
| France | 1038 fdc1 | Stamp and (pictorial) cancel on FDC (blank/no cachet) | ||
| France | 1038 fdc2 | Stamp and (text) cancel and (Éditions J.F.) cachet on FDC | ||
| France | 1038 fdc3 | Stamp and (text) cancel and (PJ no.423) cachet on FDC | ||
| France | 1038 fdc4 | Stamp and (text) cancel and (PJ no.423) cachet (different) on FDC | ||
| France | 1038 fdc5 | Stamp and (text) cancel and (Éditions PAC) cachet on FDC | ||
| France | 1038 fdc6 | Stamp and (text) cancel and (?) cachet on FDC | ||
| France | 1038 fdc7 | Stamp and (text) cancel (different) on FDC (blank/no cachet) | ||
| France | 1038 maxi1 | Maxicard | ||
| France | 1038 maxi2 | Maxicard (different, brown) | ||
| France | 1038 maxi3 | Maxicard (yellow) | ||
| France | 1038 maxi4 | Maxicard (different) | ||
| France | 1038 maxi5 | Maxicard (different) | ||
| France | 1038 maxi6 | Maxicard (different) | ||
| France | 1038 maxi7 | Maxicard (different cancel) | ||
| France | 1038 maxi8 | Maxicard (different cancel) | ||
| France | 1038 maxi9 | Maxicard (different color and different cancel) | ||
| France | 1038 maxi10 | Maxicard (different) | ||
| France | 1038 sc | Souvenir card | ||
| France | 1038 proof | Signed proof (brown) | ||
| France | 1038+cancel | Stamp and (FD text) cancel | ||
| France | 1038+cancel | Stamp and (pictorial) cancel | 1962 | "Journées Blaise Pascal" |
| France | 1038 cover1 (Mi1398 cover1) | Stamp and (Setif) cancel on cover (blank/no cachet) | 1962 | "Pascal" |
| France | 1038 cover2 (Mi1398 cover2) | Stamp and (text) cancel and (Éditions PAC) cachet on cover | 1962 | "Pascal" |
| France | B181+1038 cover (Mi626+1398 cover) | Dual stamps and dual cancels on cover | 1962 | "Journées Blaise Pascal" and "Pascal" |
| France | None | (Slogan) cancel on cover | 1962 | "Tricentenaire de Pascal" |
| France | None | Meter | 1969 | 37 Tours Blaise Pascal |
| France | P156 | 500 francs (banknote) | 1987-1989 | |
| France | None | Cachet on stamped envelope | 2006 | |
| Germany | None | (Marke-individuell) personalized postage | 2012 | |
| Germany | None | (Marke-individuell) personalized postage (different) | ||
| Germany | None | (Marke-individuell) personalized postage (different) | ||
| Germany | None | (Marke-individuell) personalized postage (different) | ||
| Guinea Republic | Mi6624-6628_ms5 | MS5 (Mi6624-6628) | 2009 | Pascal experimented with "atmospheric pressure"; his name was "given to the unit of pressure in the SI system of units" (in SS1 text) |
| Guinea Republic | Mi6624-6628_fdc | MS5 and cachet on FDC | ||
| Guinea Republic | BL1696 | SS1 | ||
| Korea (South) | 2425c (Mi?) | One of strip of 3 (2425 (a-c)), or one of strip of 3 (2425 + 3 labels), or from MS15 (2425d (5x 2415 + 3 labels)) | 2014 | Pascal's triangle |
| Korea (South) | 2425c fdc | Stamp on FDC | ||
| Korea (South) | 2425c maxi | Maxicard (with stamp and label) | ||
| Korea (South) | None | Postcard and 2425c stamp, also back | 2014 | |
| Liberia | Mi2515 | One of MS17 (Mi2506-2522 + label), also margin detail | 1999 | Pascal's triangle |
| Monaco | 875 (Mi1080) | 1973 | 350th anniv. birth | |
| Monaco | 875 fdc1 | Stamp and cachet on FDC | ||
| Monaco | 875 fdc2 | Stamp and cachet (different) on FDC | ||
| Monaco | 875 fdc3 | Stamp and (Éditions J.F.) cachet on FDC | ||
| Monaco | 875 fdc4 | Stamp and (Éditions J.F.) cachet (different) on FDC | ||
| Monaco | 875 maxi | Maxicard | ||
| Monaco | 875+artwork | Stamp and original artwork | ||
| Monaco | 875 sc | Souvenir card | ||
| Monaco | 875 proof | Signed proof (black) | ||
| Monaco | 873+875-876+878 sp | One of four stamps and center of souvenir page (873+875-876+878) | ||
| Northern Territories Local Post (Japan) | Local a | One of MS8 (a-h + label) | 2011 | (350th anniv. death, in 2012) |
| Odessa | Local ms | Local post MS4 (a-d) | 200? | |
| Romania | None | Postal card | 2001 | |
| Romania | None | (Pictorial) cancel and cachet on postcard | 2008 | |
| Romania | None | (Pictorial) cancel and cachet on postcard (different) | 2008 | |
| St. Thomas and Prince Islands | 1852b (Mi?) i1852b | One of MS6 (1852 (a-f)) Imperforate | 2008 | |
| Spain | None | (Multi-color printed) cachet on (un-canceled) (Spanish Post) stamped envelope (from 2011) | 2013 | "Blaise Pascal" |
| Spain | None | (Multi-color printed) cachet (different) on (un-canceled) (Spanish Post) stamped envelope (from 2011) | ||
| Spain | None | (Multi-color printed) cachet (different) on (un-canceled) (Spanish Post) stamped envelope (from 2011) | ||
| Spain | None | (Multi-color printed) cachet (different) on (un-canceled) (Spanish Post) stamped envelope (from 2011) | ||
| Spain | None | (Multi-color printed) cachet (different) on (un-canceled) (Spanish Post) stamped envelope (from 2011) | ||
| Spain | None | (Multi-color printed) cachet (different) on (un-canceled) (Spanish Post) stamped envelope (from 2011) | ||
| United States | None | (Coverscape) cachet on cover | 2013 | 390th anniv. birth |
| joule (J) | 
| James Prescott Joule (1818 - 1889) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Germany | 2480 cover (Mi? cover) | Cachet on (un-canceled) cover | 2018 | "Joule" |
| Guinea-Bissau | Mi4446A Mi4446B | From MS5 (Mi4444A-4448A) Imperforate | 2009 | "James Prescott Joule"; (120th anniv. death) |
| Macedonia | Unknown (Mi?) | From MS9 (9x unknown) | 2018 | "James Prescott Joule"; 200th anniv. birth |
| Macedonia | Unknown fdc | Stamp and (pictorial) cancel and cachet on FDC | ||
| Macedonia | None | Postcard |
| watt (W) | 
| James Watt (1736 - 1819) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Some information on Watt is found here. | ||||
| Albania | 2205c (Mi2294) | One of strip of 4 (2205 (a-d)) (Mi2292-2295) | 1986 | (250th anniv. birth) |
| Albania | 2205a-d fdc | One of four stamps on FDC | ||
| Albania | 2206 (BL87) | On (center) label of SS1 | ||
| Antigua and Barbuda | 1605B (Mi1671) | 1992 | ||
| Barbuda | 1367 (Mi?) | Antigua and Barbuda 1605B overprinted | 1993 | |
| Bosnia and Herzegovina (Serb Admin.) | 126e (Mi189) | One of booklet pane of 7 (126 (a-g + 2 labels)) (Mi185-191) | 2000 | (180th anniv. death, in 1999) |
| Burundi | 1245b (Mi?) i1245b | One of MS4 (1245 (a-d)) One of imperforate MS4 (i1245 (a-d)) | 2012 | |
| Chad | Unknown c (Mi?) Unknown ic | One of MS4 (a-d) One of imperforate MS4 (a-d) | 2015 | "James Watt"; (280th anniv. birth, in 2016) |
| China (People's Republic) | None | Postal card back8, also front | 2009 | (190th anniv. death) |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | (190th anniv. death) |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | (190th anniv. death) |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | (190th anniv. death) |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | (190th anniv. death) |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | (190th anniv. death) |
| China (People's Republic) | None | Postal card back8 (different), also front (same) | 2009 | (190th anniv. death) |
| China (People's Republic) | None | Postal card back8, also front | 2012? | |
| China (People's Republic) | None | Postal card back8 (different), also front (different) | 2012? | |
| Cuba | 3718 (Mi3896) | 1996 | ||
| Germany | None | Cinderella (poster stamp) | early-1900s | |
| Germany | None | Cinderella (poster stamp) (different) | early-1900s | |
| Great Britain | 2646 (Mi?) | One of pair (2646a (2645-2646)) | 2009 | |
| Great Britain | 2645-2652 pack | Presentation pack | ||
| Great Britain | P393 | 50 pounds (banknote) | 2011 | Watt (at right) |
| Grenada | 1538 (Mi1690) | 1987 | Watt (mis-identified as "Rudolf Diesel" in text); (250th anniv. birth, in 1986) | |
| Grenada Grenadines | 912 (Mi?) | 1987 | Rudolf Diesel (incorrectly inscribed "James Watt"); (250th anniv. birth, in 1986) | |
| Guinea-Bissau | Unknown e (Mi?) | One of MS6 (a-f) | 2009 | |
| Lesotho | 1213a (Mi1579) | On one stamp and in (lower-left) margin of MS6 (1213 (a-f)) (Mi1579-1584) | 1999 | James Watt (ship, in text) |
| Macedonia | 561 (Mi?) | From MS9 (561a (9x 561)) | 2011 | 275th anniv. birth |
| Macedonia | 561 fdc | Stamp and (pictorial) cancel and cachet on FDC | ||
| Maldive Islands | 2421d (Mi?) | One stamp and in (left) margin of MS17 (2421 (a-q + label)) | 2000 | "1769, James Watt, Scottish engineer an inventor, perfects steam engine"; (180th anniv. death, in 1999) |
| Maldive Islands | 2421d maxi | Maxicard | ||
| Mali | 538 (Mi1071) i538 | Imperforate | 1986 | (250th anniv. birth) |
| Mali | 538 ds (BL?) | Deluxe sheet (538) | ||
| Mali | 581 (Mi?) | 538 overprinted in black | 1992 | (250th anniv. birth) |
| Marshall Islands | 1032i (Mi2932) | One of MS20 (1032 (a-t)) (Mi2924-2943) | 2012 | |
| Mozambique | Unknown ms (Mi?) | MS4 (a-d) | 2019 | 200th anniv. death "James Watt" |
| Mozambique | Unknown fdc | MS4 and (multi-color printed) cachet on FDC | ||
| Mozambique | Unknown ss (BL?) | SS1 | ||
| Northern Territories Local Post (Japan) | Local c | One of MS6 (a-f) | 2011 | |
| St. Thomas and Prince Islands | 1851e (Mi?) | One of MS6 (1851 (a-f)) | 2008 | |
| Sierra Leone | 2296b (Mi?) | On one stamp and in (right) margin of MS2 (2296 (a-b)) | 2000 | (180th anniv. death, in 1999) |
| Sierra Leone | 2517e (Mi?) | One of MS6 (2517 (a-f)) | 2002 | |
| Togo | Unknown ms (Mi?) | MS4 (a-d) | 2019 | 200th anniv. death "James Watt" |
| Togo | Unknown ss (BL?) | SS1 | ||
| Uganda | 566 fdc (Mi556 fdc) | (Fleetwood) cachet on FDC, also back | 1987 | (250th anniv. birth, in 1986) |
| Wallis and Futuna Islands | 341 (Mi511) i341 | Imperforate | 1986 | (250th anniv. birth) |
| Wallis and Futuna Islands | 341 fdc | Stamp and (text) cancel and cachet on FDC | ||
8This postal card is only one of a large number of similar cards issued by China for various scientists. No effort is made to list all such cards.
| coulomb (C) | 
| Charles Coulomb (1736 - 1806) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| France | B352 (Mi1351) | 1961 | ||
| France | B352 fdc1 | Stamp and (text) cancel on FDC | ||
| France | B352 fdc2 | Stamp and (text) cancel (same) and cachet on FDC | ||
| France | B352 fdc3 | Stamp and (text) cancel (same) and cachet (different) on FDC | ||
| France | B352 fdc4 | Stamp and (text) cancel (same) and cachet (different) on FDC | ||
| France | B352 fdc5 | Stamp and (text) cancel (same) and cachet (different) on FDC | ||
| France | B352 maxi1 | Maxicard | ||
| France | B352 maxi2 | Maxicard (different) | ||
| Mali | Unknown a (Mi?) | One of MS2 (a-b) [known illegal issue] | 2011 | |
| Mali | Unknown ms fdc | MS2 on FDC |
| volt (V) | 
| Alessandro Volta (1745 - 1827) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Some information on Volta is found here. | ||||
| Afars and Issas | C105 (Mi170) | 1977 | (150th anniv. death) | |
| Altai | Unknown b (Mi?) | One of MS8 (a-h), also from imperforate MS8 (a-h), and from self-adhesive MS28 | 2011 | |
| Cyrenaica | 25 (Mi?) | Italy 188 changed color and overprinted | 1927 | 100th anniv. death |
| Cyrenaica | 25 o/p omitted (Mi?) | Italy 188 changed color but overprint omitted | ||
| Cyrenaica | 26 (Mi?) | Italy 189 changed color and overprinted | ||
| Cyrenaica | 27 (Mi?) | Italy 191 changed color and overprinted | ||
| Djibouti | C107 (Mi?) | Afars and Issas C105 overprinted; from MS10 (C107a (10x C107)) | 1977 | (150th anniv. death) |
| Eritrea | 102 (Mi125) | Italy 188 changed color and overprinted | 1927 | 100th anniv. death |
| Eritrea | 103 (Mi126) | Italy 189 changed color and overprinted | ||
| Eritrea | 104 (Mi127) | Italy 191 changed color and overprinted | ||
| Italy | None | Cinderella (poster stamp) | 1899 | 100th anniv. Voltaic pile |
| Italy | None | Cinderella (poster stamp, different color) | 1899 | 100th anniv. Voltaic pile |
| Italy | 188 (Mi259) | 1927 | 100th anniv. death | |
| Italy | 189 (Mi260) | |||
| Italy | 190 (Mi261) | |||
| Italy | 191 (Mi262) | |||
| Italy | None | Postal card, also back | 1927 | 100th anniv. death |
| Italy | 526 (Mi784) | 1949 | "150th anniv. Voltaic pile" (in Italian text) | |
| Italy | 527 (Mi785) | 1949 | ||
| Italy | P112 | 10,000 lire (banknote) | 1984 | |
| Italy | 1873 (Mi2205) | 1992 | ||
| Italy | 1873 fdc | Stamp and (pictorial) cancel and cachet on FDC | ||
| Italy | 2309 (Mi2560) | 1999 | ||
| Mali | Unknown b (Mi?) | One of MS2 (a-b) [known illegal issue] | 2011 | |
| San Marino | 1042 (Mi1272) | 1983 | "Alessandro Volta" | |
| San Marino | 1042 maxi | Maxicard | ||
| Solomon Islands | Unknown ms (Mi?) | MS4 (a-d) | 2015 | 270th anniv. birth |
| Solomon Islands | Unknown ss (BL?) | SS1 | ||
| Somalia | 97 (Mi?) | Italy 188 changed color and overprinted | 1927 | 100th anniv. death |
| Somalia | 98 (Mi?) | Italy 189 changed color and overprinted | ||
| Somalia | 99 (Mi?) | Italy 191 overprinted | ||
| Trieste (Italy) | 53 (Mi76) | Italy 526 overprinted | 1949 | Voltaic pile (device) |
| Trieste (Italy) | 54 (Mi77) | Italy 527 overprinted | 1949 | |
| Tripolitania | 25 (Mi?) | Italy 188 changed color and overprinted | 1927 | 100th anniv. death |
| Tripolitania | 26 (Mi?) | Italy 189 changed color and overprinted | ||
| Tripolitania | 27 (Mi?) | Italy 191 changed color and overprinted | ||
| United States | None | (Text) cancel on postcard, also back | 1908 | Volta CA (post office) |
| farad (F) | 
| Michael Faraday (1791 - 1867) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Faraday (on non-launch-cover postal items) | ||||
| Benin | Unknown ms (Mi?) | MS2 (a-b) [known illegal issue] | 2017 | 150th anniv. death "Michael Faraday" |
| Benin | Unknown fdc | MS2 and cachet on FDC | ||
| Benin | Unknown ss (BL?) | SS1 [known illegal issue] | ||
| Benin | Unknown fdc | SS1 and cachet on FDC | ||
| British Antarctic Territory | 76-81 fdc (Mi? fdc) | (Text) cancel on FDC | 1980 | "Faraday Base" |
| British Antarctic Territory | None | (Text) cancel and cachet on postcard, also back | 1985 | "Faraday" (Station, Antarctica) |
| British Antarctic Territory | None | (Text) cancel and cachet on cover | 1990 | "Faraday" (Station, Antarctica) |
| British Antarctic Territory | 176-179 fdc (Mi177-180 fdc) | (Text) cancel and cachet on FDC, also insert and insert back | 1991 | "Faraday Station" (Antarctica) |
| British Antarctic Territory | 188 (Mi189) | Like 184 inscribed in blue | 1991 | 200th anniv. birth |
| British Antarctic Territory | 189 (Mi190) | Like 185 inscribed in blue | ||
| British Antarctic Territory | 190 (Mi191) | Like 186 inscribed in blue | ||
| British Antarctic Territory | 191 (Mi192) | Like 187 inscribed in blue | ||
| British Antarctic Territory | 188-191 fdc | Four stamps and (text) cancel and (BAT Official) cachet on FDC | ||
| British Antarctic Territory | 198 (Mi199) | Also gutter pair | 1992 | "Faraday" (Station, Antarctica) |
| British Antarctic Territory | 198-201 fdc | One of four stamps on FDC, also insert and insert back | ||
| British Antarctic Territory | 344 (Mi385-386) | On one of pair (a-b) | 2004 | "Faraday Station" (Antarctica) |
| British Antarctic Territory | 344c | Ten of MS20 (10x (344 (a-b))) | ||
| British Antarctic Territory | 342-344 fdc | One of three pairs of stamps on FDC | ||
| Cambodia | 2053 (Mi2148) | 2001 | ||
| Canada | 1135-1136 fdc (Mi? fdc) | (?/Fleetwood) cachet on FDC, also back | 1987 | (120th anniv. death) |
| Chad | Unknown b (Mi?) Unknown ib | One of MS2 (a-b) One of imperforate MS2 (a-b) | 2014 | "Michael Faraday" |
| Chad | Unknown ss (BL?) Unknown iss | SS1 Imperforate SS1 | ||
| Cuba | 3580 (Mi3758) | 1994 | ||
| Djibouti | Unknown a (Mi?) Unknown ia | One of MS4 (a-d) One of imperforate MS4 (a-d) | 2006 | |
| Djibouti | Unknown ms fdc Unknown ims fdc | MS4 and cachet on FDC Imperforate MS4 and cachet on FDC | ||
| France | None | (Text) cancel and cachet on postcard, also back | 1948 | "Faraday" |
| Great Britain | None | Cinderella (poster stamp) | 1931 | |
| Great Britain | 658 (Mi584) | 1971 | Faraday Building, Engineering Faculty, University of Southampton | |
| Great Britain | 1360 (Mi1320) | 1991 | "Faraday"; (200th anniv. birth) | |
| Great Britain | 1360 fdc1 | Stamp and (pictorial) cancel and (Benham silk) cachet on FDC | ||
| Great Britain | 1360 fdc2 | Stamp and (Fleetwood) cachet on FDC (Edinburgh cancal) | ||
| Great Britain | 1360-1363 fdc1 | One of four stamps on FDC (Royal Mail cachet, Canterbury cancel) | ||
| Great Britain | 1360-1363 fdc2 | One of four stamps on FDC (Royal Mail cachet, Twickenham cancel) | ||
| Great Britain | 1360-1363 fdc3 | One of four stamps on FDC (Fleetwood cachet) | ||
| Great Britain | P384a | 20 pounds (banknote) | 1990—1991 | |
| Great Britain | P384b | 20 pounds (banknote) | 1991 | |
| Great Britain | P387 (like P384) | 20 pounds (banknote) | 1993 | |
| Great Britain | 1869 (Mi?) | 1999 | "Faraday's electricity" | |
| Great Britain | 1869 card | PHQ card | ||
| Great Britain | 1869 pane | Prestige pane of 4 (4x 1869) | ||
| Great Britain | 1867-1870 fdc (Mi1819+1820C+1821C+1822A fdc) | One of four stamps on FDC (Benham cachet) | ||
| Guinea-Bissau | Mi4444A Mi4444B | From MS5 (Mi4444A-4448A) Imperforate | 2009 | "Michael Faraday" |
| Macedonia | Unknown (Mi?) | From MS9 (9x unknown) | 2017 | 150th anniv. death "Michael Faraday" |
| Macedonia | Unknown fdc | Stamp and (signature) cancel and cachet on FDC | ||
| Malagasy Republic | 1100e (Mi1482) | One of MS16 (1100 (a-p)) | 1992 | |
| Malawi | Unknown b (Mi?) | One of MS2 (a-b) | 2008 | |
| Marshall Islands | 1032g (Mi2930) | One of MS20 (1032 (a-t)) (Mi2924-2943) | 2012 | |
| Palau | 538j (Mi1596) | One of MS17 (538 (a-q + label)) (Mi1587-1603) | 2000 | "Faraday" |
| Sierra Leone | Unknown d (Mi?) Unknown id | One of MS8 (a-h) One of imperforate MS8 (a-h) | 2011 | (220th anniv. birth) |
| Sierra Leone | Unknown margin (Mi? margin) | In (right) margin of MS8 (a-h) (different) In (right) margin of imperforate MS8 (a-h) | ||
| United States | None | Cachet on cover | 1992 | "Faraday" (Station, Antarctica) |
| Country | Cancel Date | Cancel Location | Type of Item | Notes on Content |
|---|---|---|---|---|
| Faraday (on satellite launch covers) | ||||
| United States | 1975-12-14 | Cape Canaveral FL | (Orbit Covers) cachet on DSP-5 launch cover | "Faraday Cup" instrument |
| ohm (Ω) | 
| George Simon Ohm (1787 - 1854) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Germany | 1829 (Mi1732) | 1994 | Discovery of Ohm's Law: "Entdeckung des Ohmschen Gesetzes" | |
| Germany | 1829 fdc1 | Stamp on FDC | ||
| Germany | 1829 fdc2 | Stamp and (pictorial) cancel and cachet on FDC | ||
| Germany | 1829 fdc3 | Stamp and (pictorial) cancel and cachet (different) on FDC | ||
| Ivory Coast | Unknown ms (Mi?) | MS2 (a-b) | 2016 | "Georg Ohm" |
| Ivory Coast | Unknown fdc | MS2 and cachet on FDC | ||
| Ivory Coast | Unknown ss (BL?) | SS1 | ||
| Ivory Coast | Unknown fdc | SS1 and cachet on FDC | ||
| Mali | Unknown b (Mi?) | One of MS2 (a-b) [known illegal issue] | 2011 |
| siemens (S) | 
| Werner von Siemens (1816 - 1892) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Central African Republic | 841 (BL401) | SS1 | 1986 | |
| Germany (Berlin) | 9N90 (Mi97) | 1952 | ||
| Germany (West) | 968 (Mi528) | 1966 | (150th anniv. birth) | |
| Germany | 1768 (Mi1642) | 1992 | (100th anniv. death) | |
| Paraguay | 1929a (Mi3249) | One of strip of 7 (1929 (a-g)) | 1979 | "Werner von Siemens" |
| weber (Wb) | 
| Wilhelm Eduard Weber (1804 - 1891) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| China (People's Republic) | None | Postal card back1, also front | 2009 | Statue of Weber (standing) and Gauss in Göttingen |
| China (People's Republic) | None | Postal card back1 (different), also front (same) | 2009 | Statue of Weber (standing) and Gauss in Göttingen |
| Germany | None | (Marke-individuell) personalized postage | 2011 | Statue of Weber (standing) and Gauss in Göttingen; (120th anniv. death) |
| Germany | None | (Citipost) private post stamp | 2012? | Statue of Weber (standing) and Gauss in Göttingen |
| Germany | None | 2012 | 175th anniv. Göttingen seven: "W.E. Weber" | |
| Germany | 2699 (Mi?) | 2012 | 175th anniv. Göttingen seven: Weber (in middle-right) |
1This postal card is only one of a large number of similar cards issued by China for various scientists. No effort is made to list all such cards.
| tesla (T) | 
| Nikola Tesla (1856 - 1943) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Some information on Tesla is found here. | ||||
| Bosnia and Herzegovina (Croat Admin.) | 163 (Mi?) | 2006 | 150th anniv. birth | |
| Bosnia and Herzegovina (Muslim Admin.) | Unknown (Mi?) | From MS10 (10x unknown)) | 2018 | 75th anniv. death |
| Bosnia and Herzegovina (Serb Admin.) | 283 (BL?) | SS1 | 2006 | 150th anniv. birth "N. Tesla" |
| Bosnia and Herzegovina (Serb Admin.) | 283 fdc | SS1 and (Bosnia (Serbian Administration) Post Office) cachet on FDC | ||
| Bosnia and Herzegovina (Serb Admin.) | 288A (Mi?) | |||
| Bosnia and Herzegovina (Serb Admin.) | 486 (Mi?) | From MS8 (486a (8x 486 + label)) | 2013 | 100th anniv. Tesla turbine; (70th anniv. death) |
| Bosnia and Herzegovina (Serb Admin.) | 486 fdc | Stamp and (pictorial) cancel and cachet on FDC | ||
| Brazil | 3286b (Mi4183) | One of strip of 2 (3286 (a-b)) (Mi4182-4183) | 2014 | |
| Central African Republic | Unknown ss (BL?) | On stamp of SS1 | 2015 | "Nikola Tesla"; (160th anniv. birth, in 2016) |
| Central African Republic | Unknown fdc | SS1 on FDC | ||
| Central African Republic | Unknown ms (Mi?) | MS4 (a-d) | 2016 | 160th anniv. birth "Nikola Tesla" |
| Central African Republic | Unknown fdc | MS4 and cachet on FDC | ||
| Central African Republic | Unknown ss (BL?) | SS1 | ||
| Central African Republic | Unknown fdc | SS1 and cachet on FDC | ||
| Congo Republic | Unknown ms (Mi?) | MS2 (a-b + 2 labels) [known illegal issue] | 2018 | "Nikola Tesla" |
| Congo Republic | Unknown1 ss (BL?) | SS1 [known illegal issue] | ||
| Congo Republic | Unknown2 ss (BL?) | SS1 (different) [known illegal issue] | ||
| Croatia | 147 (Mi224) | From MS20 (147a (20x 147)) | 1993 | 50th anniv. death |
| Croatia | 147 fdc | Stamp and (pictorial) cancel and cachet on FDC | ||
| Croatia | 626 (Mi?) | 2006 | (150th anniv. birth) | |
| Croatia | 626 fdc | Stamp and (pictorial) cancel and cachet on FDC | ||
| Croatia | 626 maxi | Maxicard, also back | ||
| Croatia | 626 cover (Mi? cover) | Stamp and (pictorial) cancel and cachet on cover | 2006 | 100th anniv. various Tesla patents |
| Croatia | None | (Pictorial) cancel and (black printed) cachet on postal card | 2015 | |
| Czechoslovakia | 949 (Mi1170) | 1959 | "Nikola Tesla" | |
| Czechoslovakia | 949-950+954 fdc | One of three stamps on FDC | ||
| Georgia | 405 (Mi?) | 2006 | (150th anniv. birth) | |
| Ghana | 2062c (Mi?) | Two stamps and in (lower) margin of MS8 (2062 (a-h)) | 1998 | |
| Ghana | 2062d (Mi?) | |||
| India | 1393 cover (Mi? cover) | Cachet on cover | 1991 | |
| Ivory Coast | Unknown ms (Mi?) | MS2 (2x unknown) [known illegal issue] | 2012 | |
| Ivory Coast | Unknown ss (BL?) | SS1 [known illegal issue] | ||
| Kosovo and Metohija | Unknown iss (BL?) | Imperforate SS1 | 2006 | 150th anniv. birth |
| Lesotho | 1379b (Mi?) | (Middle) one of MS3 (1379 (a-c)) | 2005 | |
| Macedonia | 373 (Mi?) | 2006 | (150th anniv. birth) | |
| Mali | Unknown b (Mi?) | One of MS2 (a-b) [known illegal issue] | 2011 | |
| Moldova | Mi1046 | From MS10 (10x Mi1046) | 2018 | "Nikola Tesla" |
| Moldova | Mi1046-1047 fdc | One of two stamps and (multi-color printed) cachet on FDC | ||
| Mozambique | Unknown ms (Mi?) | MS4 (a-d) | 2016 | 160th anniv. birth "Nikola Tesla" |
| Mozambique | Unknown fdc | MS4 and cachet on FDC | ||
| Mozambique | Unknown ss (BL?) | SS1 | ||
| Mozambique | Unknown fdc | SS1 and cachet on FDC | ||
| Palau | 557s (Mi?) | One of MS20 (557 (a-t)) | 2000 | |
| Romania | 5636 (Mi6908) | From MS5 (5636a (5x 5636 + label) | 2014 | "Nikola Tesla" |
| Romania | 5636-5639 fdc | One of four stamps on FDC | ||
| Serbia | P41a | 100 dinara (banknote) | 2003 | |
| Serbia | P41b | 100 dinara (banknote) | 2004 | |
| Serbia | P49a | 100 dinara (banknote), also back | 2006 | |
| Serbia | KM42 | 20 dinara (copper-nickel-zinc coin) | 2006 | (150th anniv. birth) |
| Serbia | KM43 | 1000 dinara (silver coin) | 2006 | (150th anniv. birth) |
| Serbia | KM44 | 5000 dinara (gold coin) | 2006 | (150th anniv. birth) |
| Serbia | KM45 | 10,000 dinara (gold coin) | 2006 | (150th anniv. birth) |
| Serbia | P57a | 100 dinara (banknote), also back | 2012 | |
| Serbia | P57b | 100 dinara (banknote), also back | 2013 | |
| Serbia | None | Postcard, also back | 2015 | |
| Serbia | Unknown (Mi?) | Personalized postage? | 2015 | (160th anniv. birth, in 2016) |
| Serbia | Unknown fdc | Stamp and cachet on FDC, also back | ||
| Serbia | Unknown maxi1 | Maxicard, also back | ||
| Serbia | Unknown maxi2 | Maxicard (different), also back | ||
| Serbia | Unknown (Mi?) | Personalized postage?, from MS8 (8x unknown + label), or from booklet1 or booklet2 | 2016 | 125th anniv. Tesla's transformer patent; (160th anniv. death) |
| Serbia | Unknown fdc | Stamp on FDC, also back | ||
| Serbia | Unknown maxi1 | Maxicard, also back | ||
| Serbia | Unknown maxi2 | Maxicard (different), also back | ||
| Serbia | Unknown maxi3 | Maxicard (different), also back | ||
| Serbia | Unknown maxi4 | Maxicard (different), also back | ||
| Serbia | Unknown (Mi?) | 2019 | ||
| Serbia | Unknown ms (Mi?) | MS20 (5x (a-d) + 5 labels) | 2020 | "65th anniv. Nikola Tesla Museum in Belgrade" |
| Serbia-Krajina | Mi58A Mi58B | One of strip of 2 + label, or one of MS8 (8x Mi58A + label); also on selvedge Imperforate | 1996 | (140th anniv. birth) |
| Serbia-Krajina | Mi58A fdc | Stamp and (pictorial) cancel and cachet on FDC | ||
| Serbia-Krajina | Unknown ss (BL?) | Imperforate SS1 | 2000 | "Nikola Tesla" |
| Serbia-Krajina | Unknown2 ss var | Imperforate SS1, no control number | ||
| Serbia-Montenegro | 342 (Mi3333) | From MS25 (342a (25x 342)) | 2006 | 150th anniv. birth |
| Serbia-Montenegro | 342 maxi1 | Maxicard, also back | ||
| Serbia-Montenegro | 342 maxi2 | Maxicard (different), also back | ||
| Serbia-Montenegro | 342 maxi3 | Maxicard (different), also back | ||
| Serbia-Montenegro | 342 maxi4 | Maxicard (different) | ||
| Serbia-Montenegro | 342 maxi5 | Maxicard (different) | ||
| Serbia-Montenegro | 342 maxi6 | Maxicard (different) | ||
| Serbia-Montenegro | 342 maxi7 | Maxicard (different) | ||
| Serbia-Montenegro | 342 maxi8 | Maxicard (different) | ||
| Serbia-Montenegro | 342 maxi9 | Maxicard (different) | ||
| Serbia-Montenegro | 342 maxi10 | Maxicard (different) | ||
| Serbia-Montenegro | 342 maxi11 | Maxicard (different) | ||
| Serbia-Montenegro | 342 maxi12 | Maxicard (different) | ||
| Serbia-Montenegro | 342 maxi13 | Maxicard (different) | ||
| Serbia-Montenegro | 343 (Mi3334) | From MS25 (343a (25x 343)) | ||
| Serbia-Montenegro | 343 maxi1 | Maxicard, also back | ||
| Serbia-Montenegro | 343 maxi2 | Maxicard (different), also back | ||
| Serbia-Montenegro | 343 maxi3 | Maxicard (different), also back | ||
| Serbia-Montenegro | 343 maxi4 | Maxicard (different), also back | ||
| Serbia-Montenegro | 342-343 fdc1 | Two stamps and (?) cachet on FDC | ||
| Serbia-Montenegro | 342-343 fdc2 | Two stamps and (blue and black printed) cachet on FDC | ||
| Serbia-Montenegro | 342-343 booklet | Booklet front and back, also inside (10x (342-343)) | ||
| Serbia-Montenegro | 344 (BL66) | MS2 (344 (a-b)) | ||
| Serbia-Montenegro | 344 fdc1 | MS2 and cachet on FDC | ||
| Serbia-Montenegro | 344 fdc2 | MS2 and cachet (different) on FDC | ||
| Serbia-Montenegro | 344 booklet | Booklet front and back, also inside (MS2) | ||
| Serbia-Montenegro | 342+344 booklet | Booklet front and back, also inside (stamps and MS2) | ||
| Serbia-Montenegro | 343-344 booklet | Booklet front and back, also inside (stamps and MS2) | ||
| Serbia-Montenegro | 344a maxi | Maxicard | ||
| Serbia-Montenegro | 344b maxi | Maxicard | ||
| Serbia-Montenegro | 342 cover (Mi3333 cover) | Stamp and (pictorial) cancel and cachet on cover | 2006 | 150th anniv. birth |
| Serbia-Montenegro | 343 cover (Mi3334 cover) | Stamp and (pictorial) cancel and cachet on cover | ||
| Serbia-Montenegro | 342-343 card1 | Two stamps and (pictorial) cancel and cachet on card | 2006 | 150th anniv. birth |
| Serbia-Montenegro | 342-343 card2 | Two stamps and (pictorial) cancel and cachet (different) on card | ||
| Serbia-Montenegro | 342-343 card3 | Two stamps and (pictorial) cancel and cachet (different) on card | ||
| Serbia-Montenegro | 342-343 card4 | Two stamps and (pictorial) cancel and cachet (different) on card | ||
| Serbia-Montenegro | 342-343 card5 | Two stamps and (pictorial) cancel and cachet (different) on card | ||
| Sierra Leone | Unknown ms (Mi?) | MS4 (a-d) | 2017 | "Nikola Tesla" |
| Sierra Leone | Unknown fdc | MS4 and cachet on FDC | ||
| Sierra Leone | Unknown ss (BL?) | SS1 | ||
| Sierra Leone | Unknown ms (Mi?) | MS4 (a-d) | 2018 | 75th anniv. death "Nikola Tesla" |
| Sierra Leone | Unknown ms fdc | MS4 and cachet on FDC | ||
| Sierra Leone | Unknown ss (BL?) | SS1 | ||
| Sierra Leone | Unknown ss fdc | SS1 and cachet on FDC | ||
| St. Thomas and Prince Islands | Unknown ms (Mi?) | MS4 (a-d) | 2017 | 160th anniv. birth "Nikola Tesla" (in 2016) |
| St. Thomas and Prince Islands | Unknown fdc | MS4 and cachet on FDC | ||
| St. Thomas and Prince Islands | Unknown ss (BL?) | SS1 | ||
| St. Thomas and Prince Islands | Unknown fdc | SS1 and cachet on FDC | ||
| Togo | Unknown ss (BL?) | In (left) margin of SS1 | 2011 | "Nikola Tesla" |
| Trieste (Yugoslavia) | 66 (Mi85) | Yugoslavia 373 overprinted in black, from MS30 (66a (30x 66) | 1953 | (10th anniv. death) |
| Trieste (Yugoslavia) | 67 (Mi86) | Yugoslavia 374 overprinted in red, from MS30 (67a (30x 67) | ||
| Trieste (Yugoslavia) | 66-67 fdc | Two stamps and cachet on FDC | ||
| United States | None | Cinderella | 1956 | 100th anniv. birth |
| United States | 2057 (Mi1655) | One of block of 4 (2058a (2055-2058)) (Mi1653-1656) | 1983 | "Nikola Tesla" |
| United States | 2057 fdc1 | Stamp on FDC | ||
| United States | 2057 fdc2 | Stamp and (Fleetwood) cachet on FDC, also back | ||
| United States | 2055-2058 fdc1 | One of four stamps and (Gill Craft) cachet on FDC | ||
| United States | 2055-2058 fdc2 | One of four stamps on FDC (Collins cachet) | ||
| United States | 2055-2058 fdc3 | One of four stamps on FDC (Ham cachet) | ||
| United States | 2057-2058 fdc | One of two stamps and (ArtCraft/PCS) cachet on FDC, and accompanying souvenir page | ||
| United States | SP627 | (USPS) souvenir page (2058a) | ||
| United States | CP200 | (USPS) commemorative panel (2058a) | ||
| United States | 4227 fdc (Mi4339 fdc) | (Coverscape?) cachet on FDC | 2008 | |
| United States | 5278 fdc (Mi? fdc) | (Therome) cachet on FDC | 2018 | "Nikola Tesla" |
| Yugoslavia | 136 (Mi326) | 1936 | (80th anniv. birth) | |
| Yugoslavia | 137 (Mi327) | |||
| Yugoslavia | 136-137 fdc | Two stamps on FDC | ||
| Yugoslavia | 373 (Mi712) | 1953 | (10th anniv. death) | |
| Yugoslavia | 374 (Mi713) | |||
| Yugoslavia | 448 (Mi791) | 1956 | (100th anniv. birth) | |
| Yugoslavia | 449 (Mi792) | |||
| Yugoslavia | 450 (Mi793) | |||
| Yugoslavia | 451 (Mi794) | |||
| Yugoslavia | 448-451 fdc | Four stamps and cachet on FDC | ||
| Yugoslavia | 448-451 sc | Four stamps on PTT souvenir card, also back | ||
| Yugoslavia | None | Cachet on QSL card | 1956 | (100th anniv. birth) |
| Yugoslavia | None | Cachet on QSL card (different), and extra (450 and 451) stamps | 1956 | (100th anniv. birth) |
| Yugoslavia | None | (Pictorial) cancel and cachet on cover | 1959 | 10th anniv. Nikola Tesla Telephone Equipment Factory |
| Yugoslavia | None | (Pictorial) cancel and cachet on cover | 1963 | 20th anniv. death |
| Yugoslavia | P84a (no security thread) | 500 dinara (banknote) | 1970 | |
| Yugoslavia | P84b (security thread) | 500 dinara (banknote) | 1970 | |
| Yugoslavia | None | Cachet on cover | 1974 | |
| Yugoslavia | 1308 (Mi1655) i1308 | From MS9 (1308a (9x 1308)) Imperforate | 1976 | 120th anniv. birth |
| Yugoslavia | 1308 fdc1 | Stamp and (pictorial) cancel and cachet on FDC | ||
| Yugoslavia | 1308 fdc2 | Stamp and (pictorial) cancel (different) and cachet (different) on FDC | ||
| Yugoslavia | 1308 fdc3 | Stamp and (pictorial) cancel (different) and cachet (different) on FDC | ||
| Yugoslavia | 1308 fdc4 | Stamp on FDC | ||
| Yugoslavia | P91a (like P84) | 500 dinara (banknote), also back | 1978 | |
| Yugoslavia | 1308 cover (Mi1655 cover) | Stamp and cachet on cover, also insert | 1979 | 30th anniv. Nikola Tesla Telecommunications Equipment Factory |
| Yugoslavia | P91b (like P84) | 500 dinara (banknote) | 1981 | |
| Yugoslavia | P91c (like P84) | 500 dinara (banknote) | 1986 | |
| Yugoslavia | P107 | 1000 dinara (banknote), also back | 1990 | |
| Yugoslavia | P110 (like P107) | 1000 dinara (banknote) | 1991 | |
| Yugoslavia | P114 (like P107) | 1000 dinara (banknote) | 1992 | |
| Yugoslavia | P121 (face like P114) | 5,000,000 dinara (banknote) | 1993 | |
| Yugoslavia | P127 (face like P121, back like P114) | 10,000,000,000 dinara (banknote) | 1993 | |
| Yugoslavia | P128 (face like P110) | 5000 dinara (banknote) | 1993 | |
| Yugoslavia | 2201 (Mi?) | From MS25 (2201a (25x 2201)) | 1993 | (50th anniv. death) |
| Yugoslavia | 2201 maxi | Maxicard, also back | ||
| Yugoslavia | 2200-2201 fdc1 | One of two stamps and (multi-color printed) cachet on FDC | ||
| Yugoslavia | P139 | 100 dinara (banknote) | 1994 | |
| Yugoslavia | P146 (like P139) | 5 novih din (banknote) | 1994 | |
| Yugoslavia | P148 (back like P146) | 5 novih din (banknote) | 1994 | |
| Yugoslavia | KM169 | 20 novi dinara (copper-zinc-nickel coin) | 1996 | |
| Yugoslavia | P156 | 100 dinara (banknote) | 2000 | |
| Yugoslavia | 2502e (Mi2996) | One of booklet pane of 7 (2502 (a-g + 2 labels)), also booklet outside (front and back) (MH10, Mi2992-2998) | 2000 | |
| Yugoslavia | 2502e maxi | Maxicard | ||
| Yugoslavia | 2502e-f fdc | One of two stamps and cachet on FDC | ||
| Yugoslavia | 2520 (Mi3026) i2520 | Imperforate | 2001 | |
| Yugoslavia | 2520 maxi | Maxicard | ||
| Yugoslavia | 2520 misperf | Mis-perforated pair | ||
| Yugoslavia | 2520 misperf-gutter | Mis-perforated gutter pair | ||
| Yugoslavia | 2520 misperf-maxi | Mis-perforated maxicard, also back | ||
| Yugoslavia | None | (Pictorial) cancel and cachet on cover | 2003 | 60th anniv. death |
| Yugoslavia | None | (Pictorial) cancel and cachet (Cyrillic) on cover | ||
| henry (H) | 
| Joseph Henry (1797 - 1878) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Some information on Henry is found here. | ||||
| United States | 943 (Mi548) | From MS40 (943a (40x 943)), also detail | 1946 | Henry statue (miniscule in stamp) in front of the Smithsonian Institution headquarters "Castle" (Washington DC) |
| United States | 943 fdc | Stamp and (L.W. Staehle/CachetCraft) cachet on FDC | ||
| United States | 943 fdc2 | Stamp on FDC (Ken Boll/CachetCraft cachet) | ||
| United States | 943 fdc3 | Stamp on FDC (Ken Boll/CachetCraft cachet, different; 3-line cancel) | ||
| United States | 943 fdc4 | Stamp on FDC (Ken Boll/CachetCraft cachet, same; 4-line cancel) | ||
| United States | 943 fdc5 | Stamp on FDC (Grimsland cachet, 3-line cancel) | ||
| United States | 943 fdc6 | Stamp on FDC (Grimsland cachet, 4-line cancel) | ||
| United States | 943 fdc7 | Stamp on FDC (D.W. Knapp/Fleetwood cachet, 4-line cancel) | ||
| United States | 943 fdc8 | Stamp on FDC (D.W. Knapp/Fleetwood cachet, 3-line cancel) | ||
| United States | 943 fdc9 | Stamp on FDC (C. Stephen Anderson black cachet) | ||
| United States | 943 fdc10 | Stamp on FDC (C. Stephen Anderson pink cachet) | ||
| United States | 943 fdc11 | Stamp on FDC (von Losberg cachet) | ||
| United States | 943 fdc12 | Stamp on FDC (von Losberg cachet, different) | ||
| United States | 943 fdc13 | Stamp and (Fluegel Cover) cachet on FDC | ||
| United States | 943 fdc14 | Stamp and (Bi-color Craft) cachet on FDC | ||
| United States | 943 fdc15 | Stamp on FDC (Winfred M. Grandy cachet), also back | ||
| United States | 943 fdc16 | Stamp on FDC (Crosby cachet, 4-line cancel) | ||
| United States | 943 fdc17 | Stamp on FDC (Crosby cachet, 3-line cancel) | ||
| United States | 943 fdc18 | Stamp and (Z-special) cachet on FDC | ||
| United States | 943 fdc19 | Stamp on FDC (Mae Weigand hand-painted cachet) | ||
| United States | 943 fdc20 | Stamp on FDC (F.S. cachet, 4-line cancel) | ||
| United States | 943 fdc21 | Stamp on FDC (F.S. cachet, 3-line cancel) | ||
| United States | 943 fdc22 | Stamp on FDC (L.W. Staehle cachet) | ||
| United States | 943 fdc23 | Stamp on FDC (red printed cachet) | ||
| United States | 943 fdc24 | Stamp and (Smartcraft) cachet on FDC | ||
| United States | 943 fdc25 | Stamp on FDC (Smartcraft cachet, different) | ||
| United States | 943 fdc26 | Stamp on FDC (W. Co. cachet) | ||
| United States | 943 fdc27 | Stamp on FDC (Lane cachet) | ||
| United States | 943 fdc28 | Stamp on FDC (Brenn cachet) | ||
| United States | 943 fdc29 | Stamp on FDC (Harry Ioor cachet, 3-line cancel) | ||
| United States | 943 fdc30 | Stamp on FDC (Harry Ioor cachet, 4-line cancel) | ||
| United States | 943 fdc31 | Stamp on FDC (ArtCraft cachet) | ||
| United States | 943 fdc32 | Stamp on FDC (Day Lowry cachet) | ||
| United States | 943 fdc33 | Stamp on FDC (D. Saffer cachet) | ||
| United States | 943 fdc34 | Stamp on FDC (Bernet/Reid cachet) | ||
| United States | 943 fdc35 | Stamp on FDC (Chambers cachet) | ||
| United States | 943 fdc36 | Stamp on FDC (Ludwig cachet) | ||
| United States | 943 fdc37 | Stamp on FDC (PentArts cachet), also back | ||
| United States | 943 fdc38 | Stamp on FDC (House of Farnum cachet, 3-line cancel) | ||
| United States | 943 fdc39 | Stamp on FDC (House of Farnum cachet, 4-line cancel) | ||
| United States | 943 fdc40 | Stamp on FDC (Artmaster cachet) | ||
| United States | 943 fdc41 | Stamp on FDC (Ferryman cachet) | ||
| United States | 943 fdc42 | Stamp on FDC (The Postmaster General embossed cachet/return address) | ||
| United States | 943 fdc43 | Stamp on FDC (blank/no cachet, 4-line cancel) | ||
| United States | 943 fdc44 | Stamp on FDC (blank/no cachet, 3-line cancel) | ||
| United States | 1237 fdc (Mi? fdc) | (ArtCraft) cachet on FDC, also detail | 1963 | Henry was one of the founding members of the National Academy of Sciences, whose charter was signed by President Abraham Lincoln on 3 March 1863. |
| United States | 1838 (Mi1445) | One of block of 4 (1841a (1838-1841)) | 1980 | Smithsonian Institution castle; Henry was the secretary of the Smithsonian from 1846 until his death in 1878; the Castle is depicted on this stamp, but no trace of Henry's statue is seen (except on the cachet of fdc3, in which it is clearly visible). |
| United States | 1838 fdc1 | Stamp and (Colorano silk) cachet on FDC | ||
| United States | 1838 fdc2 | Stamp and (Western silk no.112) cachet on FDC | ||
| United States | 1838 fdc3 | Stamp and (Fleetwood) cachet on FDC, also back | ||
| United States | 1838 fdc4 | Stamp and (PCS golden-replica) cachet on FDC, also back | ||
| United States | 1838 fdc5 | Stamp and (ArtCraft) cachet on FDC | ||
| United States | 1838 fdc6 | Stamp and (Andrews) cachet on FDC, also back | ||
| United States | 1838 fdc7 | Stamp and (HF) cachet on FDC | ||
| United States | 3059 (Mi2693) | From MS20 (3059a (20x 3059)) | 1996 | 150th anniv. Smithsonian Institution; Henry was the secretary of the Smithsonian from 1846 until his death in 1878; the Castle is depicted on this stamp, but no trace of Henry's statue is seen. |
| United States | 3059 fdc | Stamp and (LRC) cachet on FDC | ||
| United States | None | (PCS) cachet (including 943) on cover, also insert | 1997 | Henry statue (miniscule in stamp) in front of the Smithsonian Institution headquarters "Castle" (Washington DC) |
| becquerel (Bq) | 
| Antoine-Henri Becquerel (1852 - 1908)4 |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Some information on AH Becquerel is found here. | ||||
| Comoro Islands | 257 (Mi?) | 1977 | Nobel Prize, 1903: Becquerel (second from left), (mis-spelled "Beckerel" in text) | |
| Comoro Islands | 257a (BL94) | SS1 (257) | ||
| Comoro Islands | Mi594 | 257 overprinted | 1979 | Nobel Prize, 1903: Becquerel (second from left), (mis-spelled "Beckerel" in text) |
| France | B202 (Mi745) | 1946 | ||
| France | B202 maxi1 | Maxicard | ||
| France | B202 maxi2 | Maxicard (different) | ||
| France | B202 maxi3 | Maxicard (different) | ||
| France | B202 proof | Artist's proof | ||
| Gabon | Unknown ms (Mi?) Unknown ims | MS2 (a-b) Imperforate MS2 (a-b) | 2014 | |
| Gabon | Unknown fdc1 | MS2 and cachet on FDC | ||
| Gabon | Unknown fdc2 | MS2 and cachet (different) on FDC | ||
| Guinea Republic | 2132 (BL?) | SS1 | 2002 | 100th anniv. Nobel Prizes; (150th anniv. birth) |
| Guinea Republic | BL1598A BL1598B | In (upper) margin of SS1 In (upper) margin of imperforate SS1 | 2008 | "Antoine Becquerel"; (100th anniv. death) |
| Guinea Republic | BL1598A misperf | Mis-perforated | ||
| Guinea Republic | BL1598A fdc | SS1 on FDC | ||
| Guinea-Bissau | Mi3988A Mi3988B | One of MS6 (Mi3986A-3991A) One of imperforate MS6 (Mi3986B-3991B) | 2008 | "Henri Becquerel";(100th anniv. death) |
| Guinea-Bissau | Mi4230 | One of MS6 (Mi4230-4235) | 2009 | (100th anniv. death, in 2008) |
| Guinea-Bissau | Mi4230-4235_ms6 fdc | MS6 on FDC | ||
| Guyana | 3007a (Mi?) | One of MS9 (3007 (a-i)) | 1995 | Nobel Prize, 1903: Becquerel |
| Ivory Coast | Unknown b (Mi?) | One of MS2 (a-b) [known illegal issue] | 2017 | "Antoine Henry Becquerel" |
| Ivory Coast | Unknown fdc | MS2 on FDC | ||
| Maldive Islands | 2117d (Mi?) | One of MS9 (2117 (a-i)) | 1995 | Nobel Prize, 1903: Becquerel |
| Mali | Unknown b (Mi?) | One of MS2 (a-b) [known illegal issue] | 2011 | (160th anniv. birth, in 2012) |
| Mali | Unknown fdc | MS2 and cachet on FDC | ||
| Romania | None | (Pictorial) cancel on stamped envelope | 2003 | |
| Romania | None | Pictorial) cancel and cachet on cover | 2003 | |
| Romania | None | Pictorial) cancel on cover | 2003 | |
| Romania | None | Pictorial) cancel and cachet on postal card | 2003 | |
| Spain | None | (Multi-color printed) cachet on (un-canceled) (Spanish Post) stamped envelope (from 2011) | 2013 | "A. Henri Becquerel" |
| Sweden | 638 (Mi514) | 1963 | Nobel Prize, 1903: Becquerel | |
| Sweden | 637-638 fdc | Stamp and cachet on FDC | ||
| Sweden | 638a (Mi513DD) | Coil strip of 5 (5x 638), perforated vertically | ||
| Sweden | 639b front | Front cover of booklet of 20 (20x 639) | "Antoine Henri Becquerel" | |
4The becquerel unit was not named after Antoine-Henri's grandrather, Antoine-César Becquerel (1788 - 1878), who has also been honored on at least one stamp.
| gray (Gy) | 
| Louis Harold Gray (1905 - 1965) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| No postal items found | ||||
| sievert (Sv) | 
| Rolf Sievert (1898 - 1966) |
|---|
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| France | None | Meter | 1959 | "Sievert" (but nothing to do with the scientist Sievert) |
The table below is a Summary (by metric system unit name) of postal items listed in the tables above. This summary is also available in spreadsheet form.
| SI Unit Name | Unit Symbol | Honoring | Number of Countries | Number of Items |
|---|---|---|---|---|
| ampere | A | A.-M. Ampère | 10 | 18 |
| becquerel | Bq | A.-H. Becquerel | 11 | 33 |
| (degree) Celsius | °C | A. Celsius | 8 | 17 |
| coulomb | C | C. Coulomb | 2 | 10 |
| farad | F | M. Faraday | 13 | 46 |
| gray | Gy | L.H. Gray | 0 | 0 |
| henry | H | J. Henry | 1 | 56 |
| hertz | Hz | H.R. Hertz | 15 | 59 |
| joule | J | J.P. Joule | 1 | 1 |
| kelvin | K | Lord Kelvin (William Thomson) | 11 | 15 |
| newton | N | Sir I. Newton | 80 | 301 |
| ohm | Ω | G.S. Ohm | 2 | 4 |
| pascal | P | B. Pascal | 14 | 78 |
| siemens | S | W. von Siemens | 5 | 5 |
| sievert | Sv | R. Sievert | 1 | 1 |
| tesla | T | N. Tesla | 25 | 175 |
| volt | V | A. Volta | 13 | 36 |
| watt | W | J. Watt | 24 | 47 |
| weber | Wb | W.E. Weber | 2 | 6 |
| Total: 18 out of 19 names | Total: 908 items |
|||
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