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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.
| Sections/divisions of the tables below | |
|---|---|
| SI unit name | Person (birth-death years) |
| ampere | André-Marie Ampčre (1775 - 1836) |
| becquerel | Antoine-Henri Becquerel (1852 - 1908) |
| (degree) Celsius | Anders Celsius (1701 - 1744) |
| coulomb | Charles Coulomb (1736 - 1806) |
| farad | Michael Faraday (1791 - 1867) |
| gray | Louis Harold Gray (1905 - 1965) |
| henry | Joseph Henry (1797 - 1878) |
| hertz | Heinrich Rudolf Hertz (1857 - 1894) |
| joule | James Prescott Joule (1818 - 1889) |
| kelvin | Lord Kelvin (William Thomson) (1824 - 1907) |
| newton | Sir Isaac Newton (1642 - 1727) |
| ohm | George Simon Ohm (1787 - 1854) |
| pascal | Blaise Pascal (1623 - 1662) |
| siemens | Werner von Siemens (1816 - 1892) |
| sievert | Rolf Sievert (1898 - 1966) |
| tesla | Nikola Tesla (1856 - 1943) |
| volt | Alessandro Volta (1745 - 1827) |
| watt | James Watt (1736 - 1819) |
| weber | Wilhelm Eduard Weber (1804 - 1891) |
| Summary by metric system unit name | |
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content* | |||
|---|---|---|---|---|---|---|---|
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| Afars and Issas | C92 (Mi131) | 1975 | (200th anniv. birth) | ||||
| Albania | 2205b (Mi2293) | One of strip of 4 (2205 (a-d)) (Mi2292-2295) | 1986 | (150th anniv. death) | |||
| Albania | 2205a-d fdc | One of four stamps on FDC | |||||
| Albania | 2206 (BL87) | On (center) label of SS1 | |||||
| Altai | Unknown c | 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) | ||||
| France | 306 (Mi313) | 1936 | (100th anniv. death) | ||||
| France | 626 (Mi852) | 1949 | Ampčre (at right in stamp, at left in maxicard design) | ||||
| France | 626 maxi | Maxicard | |||||
| France | 625-628+C28 ds | Compound deluxe sheet (625-628+C28) | |||||
| France | B339 (Mi1293) | 1960 | Ampčre (cable-laying ship)3 | ||||
| Germany (East) | 1629 (Mi2029) | 1975 | (200th anniv. birth) | ||||
| Mali | C258 (Mi505) | 1975 | (200th anniv. birth) | ||||
| Mali | Unknown b (Mi?) | One of MS2 (a-b) | 2011 | ||||
| Mali | Unknown ms fdc | MS2 on FDC | |||||
| Marshall Islands | Unknown f (Mi?) | One of MS20 (a-t) | 2012 | ||||
| Monaco | 1001 (Mi1186) | 1975 | (200th anniv. birth) | ||||
|
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| Short biography of Kelvin | |||||||
| Guinea-Bissau | 540 (Mi702) | 1983 | |||||
| Mali | Unknown a (Mi?) | One of MS2 (a-b) | 2011 | ||||
| Marshall Islands | Unknown t (Mi?) | One of MS20 (a-t) | 2012 | ||||
| Redonda (Antigua) | Unknown fdc (Mi? fdc) | Cachet on FDC, also back | 1987 | (80th anniv. death) | |||
| Serbia | 394 (Mi?) | 2007 | (100th anniv. death) | ||||
| Scotland (Clydesdale Bank) | P208 | 20 pounds (banknote) | 1972—1981 | ||||
| Scotland (Clydesdale Bank) | P215 (like P208) | 20 pounds (banknote) | 1982—1990 | ||||
| Scotland (Clydesdale Bank) | P217 (like P215) | 100 pounds (banknote) | 1985, 1991 | ||||
| Scotland (Clydesdale Bank) | P223 (face like P217) | 100 pounds (banknote) | 1996 | ||||
| Scotland (Clydesdale Bank) | P229D (like P223) | 100 pounds (banknote) | 2001 | ||||
| United States | None | Cancel | 1907 | Kelvin AZ (post office) | |||
|
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| Finland + France | 741+2016 sc1 (Mi?+2561 sc1) | Cachet on dual-country souvenir card | 1986 | "Celsius" (in text) | |||
| 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" (in text) | |||
| Nevis | 1185k (Mi1458) | One and in (left) margin of MS17 (1185 (a-q + label)) | 2000 | ||||
| Sweden | 1402 (Mi1188) | One of booklet pane of 6 (1402a (6x 1402)) with booklet cover, 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 | |||||
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| Short biography of Hertz | |||||||
| Algeria | 331 (Mi430) | 1964 | Hertzian cable telephone line, Algiers-Annaba: "Faisceau Hertzien"5; (70th anniv. death) | ||||
| Canada | 1137-1138 fdc (Mi? fdc) | Cachet on FDC back, also front | 1987 | "Hertz" (in text); (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 | |||||
| Czechoslovakia | 951-953 fdc | One of three stamps on FDC | |||||
| Gabon | 350 (Mi561) | 1975 | Hertzian wave transmitter network: "Faisceaux Hertziens"5; (80th anniv. death, in 1974) | ||||
| Germany (East) | 354 (Mi576) | 1957 | (100th anniv. birth) | ||||
| Germany (East) | 354 maxi | Maxicard | |||||
| Germany (East) | KM23 | 5 marks (? coin) | 1969 | (75th anniv. death) | |||
| Germany (West) | 762 (Mi252) | Also booklet pane (762a) and booklet cover (762b) | 1957 | 100th anniv. birth | |||
| Germany (West) | 1393 (Mi1176) | 1983 | Hertz' experimental discovery of electromagnetic waves; (90th anniv. death, in 1984) | ||||
| Germany (West) | 1393 fdc1 | Stamp and cancel and cachet on FDC | |||||
| Germany (West) | 1393 fdc2 | Stamp and cancel (same) and cachet (different) on FDC | |||||
| Germany (West) | 1393 fdc3 | Stamp and cancel (same) and cachet (different) on FDC | |||||
| Germany (West) | 1393 maxi1 | Maxicard | |||||
| Germany (West) | 1393 maxi2 | Maxicard (different) | |||||
| Germany (West) | 1393 maxi3 | Maxicard (different) | |||||
| Germany (West) | 1393 maxi4 | Maxicard (different cancel) | |||||
| Germany (West) | None | Cancel on cover | 1987 | 100th anniv. Hertz' discovery of radio waves; (130th anniv. birth) | |||
| Germany | 1822 (Mi1710) | 1994 | 100th anniv. death | ||||
| Germany | 1822 fdc1 | Stamp and cancel on FDC | |||||
| Germany | 1822 fdc2 | Stamp and cancel (same) and cachet on FDC | |||||
| Germany | 1822 fdc3 | Stamp and cancel (same) and cachet (different) on FDC | |||||
| Germany | 1822 fdc4 | Stamp and cancel (same) and cachet (different) on FDC | |||||
| Germany | 1822 sc | Souvenir card | |||||
| Germany | None | Cancel and cachet on cover | 2011 | ||||
| Guinea-Bissau | 539 (Mi701) | 1983 | (90th anniv. death, in 1984) | ||||
| 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) | 2011 | ||||
| Mexico | C332 (Mi1255) | 1967 | (110th anniv. birth) | ||||
| San Marino | 1263 (Mi?) | 1992 | |||||
| San Marino | 1263 fdc1 | Stamp and cancel on FDC | |||||
| San Marino | 1263 fdc2 | Stamp and cancel and cachet on FDC | |||||
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| Short biography of Newton | |||||||
| 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 | One of 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 | 142 (Mi142) | 1971 | |||||
| Ascension | 142a | Booklet pane of 4 (4x 142) | |||||
| Ascension | 143b | Booklet of 24 (4x (138-143)), with booklet cover | |||||
| Ascension | 385 (Mi394) | 1986 | "Newton's reflector telescope" | ||||
| Belgium | B1059 fdc (Mi? fdc) | Cachet on FDC back, also front | 1987 | "Newton" (in text); (260th anniv. death) | |||
| Benin | C276 (Mi117) | 1977 | 250th anniv. death | ||||
| Benin | 1165 (BL50) | On stamp of SS1 | 1999 | "Isaac Newton" locomotive | |||
| Bulgaria | 3793 (Mi4079) | 1993 | (350th anniv. birth) | ||||
| Burundi | 759 (BL141) | SS1 | 2000 | ||||
| Central African Republic | 780 (Mi1188) | 1985 | "Newton" telescope | ||||
| Central African Republic | 780a (BL359) | SS1 (780) | |||||
| Central African Republic | 779-780 fdc | One of two stamps on FDC | |||||
| Central African Republic | 781 (Mi1189) | ||||||
| Central African Republic | 781a (BL360) | SS1 (781) | |||||
| Chad | 440B (BL151) i440B | Gold foil SS1 Imperforate gold foil SS1 | 1983 | (340th anniv. birth, in 1982) | |||
| Chad | 806g (Mi?) | One of MS9 (806 (a-i)) | 1999 | ||||
| Chad | Unknown ss (BL?) | In (upper-left) margin of SS1 | 2009 | ||||
| Chad | Unknown ss fdc | SS1 on FDC | |||||
| 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 (Mi?) iB4 | 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" (in text) | |||
| 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" (in text) | |||
| Gabon | Unknown (Mi?) | 2011 | |||||
| Gabon | Unknown ss (BL?) | SS1 | |||||
| Gabon | Unknown ss fdc | SS1 and cachet on FDC | |||||
| Germany | None | Cinderella (poster stamp) | early 1900s | ||||
| Germany | 1771 (Mi1646) | 1993 | (350th anniv. birth) | ||||
| Germany | 1771 black | Blackprint | |||||
| Germany | 1771 holo | Hologram | |||||
| Germany | 1771 folder | FDC folder | |||||
| Germany | 1771 fdc1 | Stamp and cancel on FDC | 350th anniv. birth | ||||
| Germany | 1771 fdc2 | Stamp and cancel (same) and cachet on FDC | |||||
| Germany | 1771 fdc3 | Stamp and cancel (same) and cachet (different) on FDC | |||||
| Ghana | 1031 (Mi1158) i1031 | Imperforate | 1987 | "Wedgewood honors Newton"; (260th anniv. death) | |||
| Ghana | 1130 (Mi1276) | 1031 overprinted | 1989 | "Wedgewood honors Newton" | |||
| Ghana | 1130a (Mi1280) i1130a | 1031 overprinted with comet logo i1031 overprinted with 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 | (260th anniv. death) | ||||
| Great Britain | 1172 fdc | Stamp and cachet on FDC | |||||
| Great Britain | 1173 (Mi1102) | ||||||
| Great Britain | 1174 (Mi1103) | ||||||
| Great Britain | 1175 (Mi1104) | ||||||
| Great Britain | None | Cancel | 1987 | (260th anniv. death) | |||
| Great Britain | None | Cancel (different) | |||||
| Great Britain | None | Cancel (different) | |||||
| Great Britain | None | Cancel (different) | |||||
| Great Britain | None | Cancel (different) | |||||
| Great Britain | 1337 (Mi1297) | 1990 | (Newton's telescope)6 (at left) | ||||
| Great Britain | 1337 card | PHQ card | |||||
| Great Britain | 1337 fdc | Stamp on FDC | |||||
| Great Britain | 1336-1339 fdc1 | One of four stamps on FDC | |||||
| Great Britain | 1336-1339 fdc2 | One of four stamps on FDC (different) | |||||
| Great Britain | 1336-1339 fdc3 | One of four stamps and cachet on FDC (different) | |||||
| Great Britain | 1336-1339 fdc4 | One of four stamps and cachet (same) on FDC (different cancel) | |||||
| Great Britain | 1870 (Mi?) | 1999 | |||||
| Great Britain | 1870a (BL?) | MS4 (4x 1870) | |||||
| 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 | Cancel and cachet on cover | 2010 | ||||
| Great Britain | None | Cancel (different) and cachet (different) on cover | 2010 | ||||
| Great Britain | None | Cancel | 2010 | ||||
| Great Britain | None | Cancel (different) | 2010 | (Newton's telescope) | |||
| Great Britain | 2317 ms (BL?) | 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?) | One and in (left) margin of MS17 (2932 (a-q + label)) | 2000 | ||||
| Grenada | 2932p (Mi?) | One and in (left) margin of MS17 (2932 (a-q + label)) | |||||
| Grenada | Unknown ms (Mi?) | On one of MS4 (a-d) | 2011 | ||||
| Grenada | Unknown ss (BL?) | In (right) margin of SS1 | |||||
| Grenada | Unknown ss 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) | In (left) margin of SS1 | (Newton ?) | ||||
| Guinea Republic | BL220 | In (upper) margin of SS1 | 1986 | Newton (with Halley) | |||
| Guinea Republic | 1262c (Mi1483) | One of strip of 3 (1262 (a-c)) | 1994 | ||||
| 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 | Mi5883 | One of MS6 (Mi5880-5885) | 2008 | ||||
| Guinea Republic | Mi5880-5885 fdc | One of 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 fdc Mi3930B-3935B_ms6 fdc | MS6 on FDC | |||||
| Guinea-Bissau | Unknown (Mi?) | 2009 | |||||
| Guinea-Bissau | Unknown ss (BL?) | In (lower-left and center-right) margin of SS1 | |||||
| Guinea-Bissau | Mi4447 | From MS5 (Mi4444-4448) | 2009 | ||||
| Hungary | 2485 (Mi3199) | Stamp and label, from MS4 (2485a (4x 2485 + 4 labels)) | 1977 | (250th anniv. death) | |||
| India | 767 (Mi?) | 1977 | "Newton" (in text) | ||||
| Ivory Coast | Unknown ss (BL?) | SS1 | 2012 | (370th anniv. birth) | |||
| Ivory Coast | Unknown ms (Mi?) | MS2 (a-b) | 2013 | 370th anniv. birth | |||
| 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 | |||||
| Laos | 581 (Mi770) | 1984 | |||||
| Lesotho | 578 (Mi630) | 1987 | (260th anniv. death) | ||||
| Malagasy Republic | 1100b (Mi1479) | One of MS16 (1100 (a-p)) | 1992 | (350th anniv. birth) | |||
| 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) | 2011 | ||||
| Mali | Unknown ms fdc | MS2 and cachet on FDC | |||||
| Mali | Unknown b (Mi?) | One of MS2 (a-b) | 2012 | 285th anniv. death | |||
| Marshall Islands | 963d (Mi2570) | Two of MS10 (963 (2x (a-e))) (2x (Mi2567-2571)) | 2010 | ||||
| Marshall Islands | Unknown o (Mi?) | One of MS20 (a-t) | 2012 | ||||
| Mauritius | 626 (Mi622) | 1986 | "Newton's contemporary reflector" telescope | ||||
| Mexico | C377 (Mi1336) | 1971 | |||||
| Monaco | 1601 (Mi1837) | 1987 | (260th anniv. death) | ||||
| Mongolia | 951e (Mi1051) | From MS9 (951 (a-i)) | 1977 | (250th anniv. death) | |||
| Mongolia | KM182 | 500 tugrik (silver coin) | 1999 | ||||
| Mongolia | 2504h (Mi?) | One of MS20 (2504 (a-t)) | 2001 | ||||
| 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 | |||||
| Nagaland (India) | Local | 1972 | "Newton's telescope" | ||||
| Netherlands | 731 (Mi1345) | 1988 | "Newton" prism | ||||
| Nevis | 1185o (Mi1472) | One and in (left) margin of MS17 (1185 (a-q + label)) | 2000 | ||||
| Nicaragua | 878 (Mi1614) 878 back | 1971 | Newton's law (of gravity): "Ley de Newton" | ||||
| Nicaragua | 1489 (Mi2826) | 1985 | "Telescopio de Newton" | ||||
| Nicaragua | 1985d (Mi3295) | One of MS16 (1985 (a-p)) | 1994 | ||||
| Niger | C124 (Mi249) | 1970 | |||||
| Niger | C124 proof | Die 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 | SS1 (stamp + label) | |||||
| Paraguay | 871 (Mi1431) i871 (Mi1439) | Imperforate with changed colors | 1965 | ||||
| Paraguay | 874 (Mi1434) i874 (Mi1442) | Imperforate with changed colors | |||||
| Poland | 884 (Mi1136) | 1959 | |||||
| Poland | None | Printed stamp on postal card | 1972 | (330th anniv. birth, in 1973) | |||
| Redonda (Antigua) | 8737 (Mi?) | 1987 | (260th anniv. death) | ||||
| Redonda (Antigua) | Unknown fdc (Mi? fdc) | Cachet on FDC back, 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 cancel on FDC | |||||
| Rwanda | Unknown (Mi?) | 1999 | |||||
| Rwanda | Unknown f (Mi?) | One of MS12 (a-l) | 2009 | ||||
| St. Pierre and Miquelon | C56 (Mi501) | 1974 | |||||
| St. Vincent | 920 (Mi934) | 1986 | (Newton's telescope)6 | ||||
| St. Vincent | 2699 (Mi?) | 1999 | |||||
| Sakhalin (Russia) | Local ss | In (lower) margin of SS1 | 2010 | Newton medallion | |||
| San Marino | 1023 (Mi1253) | 1982 | |||||
| Sierra Leone | 2254h (Mi3398) | One 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) | |||||
| South Africa | 995a+selvedge (Mi?+selvedge) 955e+selvedge (Mi?+selvedge) | In (surrounding) margin of MS10 (955 (a-j)) | 1996 | ||||
| Staffa (Scotland) | Local | 1985? | (Newton's telescope)6 | ||||
| Togo | 1365 (BL286) | SS1 (stamp) | 1986 | ||||
| Togo | 1409 (BL291) | SS1, 1365 overprinted in silver | 1986 | ||||
| Togo | Unknown ms (Mi?) | On one and in (upper-right) margin of MS3 (a-c) | 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 | |||||
| Umm Al Qiwain | Mi1073A | One of MS16 (Mi1066A-1081A) | 1972 | (Newton's locomotive ?)7 | |||
| Umm Al Qiwain | Mi1073 ds | Deluxe sheet (Mi1073) | |||||
| Umm Al Qiwain | Mi1089A | One of MS16 (Mi1082A-1097A) | |||||
| Uruguay | 1629 (Mi2193) | 1996 | |||||
| Vietnam | 1600 (Mi1658) i1600 | Imperforate | 1986 | ||||
| Yemen Arab Republic | Mi909A Mi909B Mi916 | From MS12 (12x Mi909A) From MS12 (12x Mi909B) From imperforate MS12 (12x Mi916) 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 (Mi?) | One of booklet pane of 7 (2502 (a-g + 2 labels)), also booklet cover (MH10) | 2000 | (Newton's telescope)6 | |||
|
|||||||
| Short biography of Pascal | |||||||
| Cambodia | 2057 (Mi2152) | In (upper-right) corner | 2001 | (picture only) | |||
| Central African Republic | 1359 (Mi2573) | 2000 | |||||
| Central African Republic | 1359a (BL649) | SS1 (1359) | |||||
| 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 | Cancel on cover | 1867 | rue Pascal, Paris | |||
| France | None | 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 | (300th anniv. death) | |||
| France | 1038+cancel | Stamp and FD cancel | |||||
| France | 1038 fdc1 | Stamp and cancel on FDC | |||||
| France | 1038 fdc2 | Stamp and cancel (different) and cachet on FDC | |||||
| France | 1038 fdc3 | Stamp and cancel (same) and cachet (different) on FDC | |||||
| France | 1038 fdc4 | Stamp and cancel (same) and cachet (different) on FDC | |||||
| France | 1038 fdc5 | Stamp and cancel (same) and cachet (different) on FDC | |||||
| France | 1038 fdc6 | Stamp and cancel (different) and cachet (same) on FDC | |||||
| France | 1038 maxi1 | Maxicard | |||||
| France | 1038 maxi2 | Maxicard (different) | |||||
| France | 1038 maxi3 | Maxicard (different) | |||||
| France | 1038 maxi4 | Maxicard (different) | |||||
| France | 1038 maxi5 | Maxicard (different) | |||||
| France | 1038 maxi6 | Maxicard (different cancel) | |||||
| France | 1038 maxi7 | Maxicard (different cancel) | |||||
| France | 1038 maxi8 | Maxicard (different color and cancel) | |||||
| France | 1038 maxi9 | Maxicard (different) | |||||
| France | 1038+cancel | Stamp and cancel | 1962 | Journées Blaise Pascal | |||
| France | 1038 cover | Stamp and (Setif) cancel on cover | 1962 | ||||
| France | B181+1038 cover | Dual stamps and cancels on cover | 1962 | Journées Blaise Pascal and FDOI cancels | |||
| France | None | Slogan cancel on cover | 1962 | "Tricentenaire de Pascal" (in text) | |||
| France | None | Meter | 1969 | 37 Tours Blaise Pascal | |||
| France | P156 | 500 francs (banknote) | 1987-1989 | ||||
| France | None | Cachet on stamped envelope | 2006 | ||||
| Guinea Republic | Unknown ms (Mi?) | MS5 | 2009 | ||||
| Guinea Republic | Unknown ss (Mi?) | SS1 | |||||
| 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 cachet (different) on FDC | |||||
| Monaco | 875 maxi | Maxicard | |||||
| Monaco | 875+artwork | Stamp and original artwork | |||||
| Monaco | 875 sc | Souvenir card | |||||
| Northern Territories Local Post (Japan) | Local a | One of MS8 (a-h + label) | 2011 | (350th anniv. death, in 2012) | |||
| Romania | None | Postal card | 2001 | ||||
| Romania | None | Cancel and cachet on postcard | 2008 | ||||
| Romania | None | Cancel (same) and cachet on postcard (different) | 2008 | ||||
| St. Thomas and Prince Island | Unknown b (Mi?) | One of MS6 (a-f) | 2008 | ||||
|
|||||||
| Guinea-Bissau | Mi4446A Mi4446B | From MS5 (Mi4444-4448) Imperforate | 2009 | (120th anniv. death) | |||
|
|||||||
| Short biography of Watt | |||||||
| 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 | |||||
| Bosnia and Herzegovina (Serb Admin.) | 126e (Mi189) | One of booklet pane of 7 (126 (a-g + 2 labels)) | 2000 | (180th anniv. death, in 1999) | |||
| Burundi | Unknown b (Mi?) | One of MS4 (a-d) | 2012 | ||||
| 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 | P-unknown | 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 | Unknown (Mi?) | From MS9 (9x unknown) | 2011 | 275th anniv. birth | |||
| Macedonia | Unknown fdc | Stamp and cancel and cachet on FDC | |||||
| Maldive Islands | 2421d (Mi?) | One and in (left) margin of MS17 (2421 (a-q + label)) | 2000 | (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 | 1992 | (250th anniv. birth) | |||
| Marshall Islands | Unknown i (Mi?) | One of MS20 (a-t) | 2012 | ||||
| Monaco | 1001 (Mi?) | 1975 | Wattmeter (device shown) | ||||
| Northern Territories Local Post (Japan) | Local c | One of MS6 (a-f) | 2011 | ||||
| St. Thomas and Prince Island | Unknown e (Mi?) | One of MS6 (a-f) | 2008 | ||||
| Sierra Leone | 2296b (Mi?) | One of MS2 (2296 (a-b)) | 2000 | (180th anniv. death, in 1999) | |||
| Sierra Leone | 2517e (Mi?) | One of MS6 (2517 (a-f)) | 2002 | ||||
| Uganda | 566 fdc (Mi556 fdc) | 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 cancel and cachet on FDC | |||||
|
|||||||
| France | B352 (Mi1351) | 1961 | |||||
| France | B352 fdc1 | Stamp and cancel on FDC | |||||
| France | B352 fdc2 | Stamp and cancel (same) and cachet on FDC | |||||
| France | B352 fdc3 | Stamp and cancel (same) and cachet (different) on FDC | |||||
| France | B352 fdc4 | Stamp and cancel (same) and cachet (different) on FDC | |||||
| France | B352 fdc5 | Stamp and 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) | 2011 | ||||
| Mali | Unknown ms fdc | MS2 on FDC | |||||
|
|||||||
| Short biography of Volta | |||||||
| Afars and Issas | C105 (Mi170) | 1977 | (150th anniv. death) | ||||
| Altai | Unknown b | 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 | 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 | 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 | 188 (Mi259) | 1927 | 100th anniv. death | ||||
| Italy | 189 (Mi260) | ||||||
| Italy | 190 (Mi261) | ||||||
| Italy | 191 (Mi262) | ||||||
| Italy | 526 (Mi784) | 1949 | Voltaic pile (device shown) | ||||
| Italy | 527 (Mi785) | 1949 | |||||
| Italy | P112 | 10,000 lire (banknote) | 1984 | ||||
| Italy | 1873 (Mi2205) | 1992 | |||||
| Italy | 2309 (Mi2560) | 1999 | |||||
| San Marino | 1042 (Mi?) | 1983 | |||||
| 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 shown) | |||
| 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 | |||||
|
|||||||
| 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 | None | Cachet on cover | 1990 | Faraday (Station, Antarctica) | |||
| British Antarctic Territory | 198 (Mi199) | 1992 | Faraday (Station, Antarctica) | ||||
| 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) | Cachet on FDC, also back | 1987 | (120th anniv. death) | |||
| 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 | |||||
| Great Britain | None | Cinderella (poster stamp) | 1931 | ||||
| Great Britain | 658 (Mi?) | 1971 | Faraday Building, Engineering Faculty, University of Southampton | ||||
| Great Britain | 1360 (Mi?) | 1991 | (200th anniv. birth) | ||||
| Great Britain | 1360-1363 fdc | One of four stamps on FDC | |||||
| 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 | |||||
| Great Britain | 1869 pane | Prestige pane of 4 (4x 1869) | |||||
| Guinea-Bissau | Mi4444 | From MS5 (Mi4444-4448) | 2009 | ||||
| Malagasy Republic | 1100e (Mi1482) | One of MS16 (1100 (a-p)) | 1992 | ||||
| Malawi | Unknown b (Mi?) | One of MS2 (a-b) | 2008 | ||||
| Marshall Islands | Unknown g (Mi?) | One of MS20 (a-t) | 2012 | ||||
| Palau | 538j (Mi1071) | One of MS17 (538 (a-q + label)) | 2000 | ||||
| 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) | |||
|
|||||||
| Germany | 1829 (Mi1732) | 1994 | Discovery of Ohm's Law: "Entdeckung des Ohmschen Gesetzes" | ||||
| Germany | 1829 fdc1 | Stamp on FDC | |||||
| Germany | 1829 fdc2 | Stamp and cancel and cachet on FDC | |||||
| Mali | Unknown b (Mi?) | One of MS2 (a-b) | 2011 | ||||
|
|||||||
| 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) | ||||
|
|||||||
| 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 | Personalized | 2011 | Statue of Weber (standing) and Gauss in Göttingen; (120th anniv. death) | |||
| Germany | None | Private post | 2012? | Statue of Weber (standing) and Gauss in Göttingen | |||
| Germany | None | 2012 | 175th anniv. Göttingen seven: "W.E. Weber" (in text) | ||||
| Germany | Unknown | 2012 | 175th anniv. Göttingen seven: Weber (in middle-right) | ||||
|
|||||||
| Short biography of Tesla | |||||||
| Bosnia and Herzegovina (Croat Admin.) | 163 (Mi?) | 2006 | 150th anniv. birth | ||||
| Bosnia and Herzegovina (Serb Admin.) | 283 (BL?) | SS1 | 2006 | 150th anniv. birth | |||
| Bosnia and Herzegovina (Serb Admin.) | 288A (Mi?) | ||||||
| Croatia | 147 (Mi224) | 1993 | 50th anniv. death | ||||
| Croatia | 147 fdc | Stamp and cancel and cachet on FDC | |||||
| Croatia | 626 (Mi?) | 2006 | (150th anniv. birth) | ||||
| Croatia | 626 fdc | Stamp and cancel and cachet on FDC | |||||
| Czechoslovakia | 949 (Mi1170) | 1959 | |||||
| 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 (BL?) | MS2 (2x a) | 2012 | ||||
| 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) | 2011 | ||||
| Palau | 557s (Mi?) | One of MS20 (557 (a-t)) | 2000 | ||||
| Serbia | P41a | 100 dinara (banknote) | 2003 | ||||
| Serbia | P41b | 100 dinara (banknote) | 2004 | ||||
| Serbia | P49 | 100 dinara (banknote) | 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-Kosovo | Unknown iss (BL?) | Imperforate SS1 | 2006 | 150th anniv. birth | |||
| Serbia-Krajina | Unknown (Mi58) | One of strip of 2 + label, or one of MS8 + label; also on selvedge | 1996 | (140th anniv. birth) | |||
| Serbia-Krajina | Unknown iss (BL?) | Imperforate SS1 | 2000 | ||||
| Serbia-Montenegro | 342 (Mi?) | 2006 | 150th anniv. birth | ||||
| Serbia-Montenegro | 342 maxi | Maxicard | |||||
| Serbia-Montenegro | 343 (Mi?) | ||||||
| Serbia-Montenegro | 343 maxi | Maxicard | |||||
| Serbia-Montenegro | 342-343 fdc1 | Two stamps and cachet on FDC | |||||
| Serbia-Montenegro | 342-343 fdc2 | Two stamps and cachet (different) on FDC | |||||
| Serbia-Montenegro | 342-343 booklet | Booklet covers, also inside (10x (342-343)) | |||||
| Serbia-Montenegro | 344 (Mi?) | 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 covers, also inside (SS1) | |||||
| Serbia-Montenegro | None | Cancel | 2006 | 150th anniv. birth | |||
| Serbia-Montenegro | None | Postcard | 2006 | (150th anniv. birth) | |||
| Serbia-Montenegro | None | Postcard (different) | |||||
| Serbia-Montenegro | None | Postcard (different) | |||||
| Serbia-Montenegro | None | Postcard (different) | |||||
| Serbia-Montenegro | None | Postcard (different) | |||||
| Serbia-Montenegro | None | Postcard (different) | |||||
| Serbia-Montenegro | None | Postcard (different) | |||||
| Serbia-Montenegro | None | Postcard (different) | |||||
| Serbia-Montenegro | None | Postcard (different) | |||||
| Serbia-Montenegro | None | Postcard (different) | |||||
| Togo | Unknown ss (BL?) | In (left) margin of SS1 | 2011 | ||||
| Trieste (Yugoslavia) | 66 (Mi85) | Yugoslavia 373 overprinted | 1953 | (10th anniv. death) | |||
| Trieste (Yugoslavia) | 67 (Mi86) | Yugoslavia 374 overprinted | |||||
| United States | None | Cinderella | 1956 | 100th anniv. birth | |||
| United States | 2057 (Mi1655) | One of block of 4 (2058a (2055-2058)) | 1983 | ||||
| United States | 2057 fdc | Stamp on FDC | |||||
| United States | SP627 | (USPS) souvenir page (2058a) | |||||
| United States | CP200 | (USPS) commemorative panel (2058a) | |||||
| United States | 4227 fdc (Mi? fdc) | Cachet on FDC | 2008 | ||||
| Yugoslavia | 136 (Mi326) | 1936 | (80th anniv. birth) | ||||
| Yugoslavia | 137 (Mi327) | ||||||
| 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 | None | Cachet on QSL card | 1956 | 100th anniv. birth | |||
| 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) | From MS9 (1308a (9x 1308)) | 1976 | 120th anniv. birth | |||
| Yugoslavia | 1308 fdc | Stamp and cachet on FDC | |||||
| Yugoslavia | P91a (like P84) | 500 dinara (banknote) | 1978 | ||||
| Yugoslavia | P91b (like P84) | 500 dinara (banknote) | 1981 | ||||
| Yugoslavia | P91c (like P84) | 500 dinara (banknote) | 1986 | ||||
| Yugoslavia | P107 | 1000 dinara (banknote) | 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?) | 1993 | (50th anniv. death) | ||||
| Yugoslavia | 2201 maxi | Maxicard, also back | |||||
| 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 (Mi?) | One of booklet pane of 7 (2502 (a-g + 2 labels)), also booklet cover (MH10) | 2000 | ||||
| Yugoslavia | 2520 (Mi3026) | 2001 | |||||
| Yugoslavia | 2520 misperf | Mis-perforated pair | |||||
| Yugoslavia | None | Cancel and cachet on cover | 2003 | 60th anniv. death | |||
| Yugoslavia | None | Cancel and cachet (Cyrillic) on cover | |||||
|
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| Short biography of Henry | |||||||
| United States | 943 (Mi548) | Also detail | 1946 | Henry statue (miniscule in stamp) in front of Smithsonian Institution headquarters "Castle" (Washington DC) | |||
| United States | 1237 fdc (Mi? fdc) | 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 | 3059 (Mi?) | 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. | ||||
|
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| Short biography of Becquerel | |||||||
| 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 | |||||
| Guinea Republic | 2132 (BL?) | SS1 | 2002 | 100th anniv. Nobel Prizes; (150th anniv. birth) | |||
| Guinea-Bissau | Mi3988 | One of MS6 (Mi3986-3991) | 2008 | (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 | |||
| Maldive Islands | 2117d (Mi?) | One of MS9 (2117 (a-i)) | 1995 | Nobel Prize, 1903: Becquerel | |||
| Mali | Unknown b (Mi?) | One of MS2 (a-b) | 2011 | (160th anniv. birth, in 2012) | |||
| Mali | Unknown fdc | MS2 and cachet on FDC | |||||
| Romania | None | Cancel on stamped envelope | 2003 | ||||
| Romania | None | Cancel (same) and cachet on cover | 2003 | ||||
| Romania | None | Cancel (same) on cover | 2003 | ||||
| Romania | None | Cancel (same) and cachet on postal card | 2003 | ||||
| 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 | |||||
|
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| No postal items found | |||||||
|
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| No postal items found | |||||||
| France | None | Meter | 1959 | "Sievert" (but nothing to do with the scientist Sievert) | |||
*Descriptions, such as anniversaries, when given in parentheses are not directly indicated on postal items, but are otherwise implied by the year of issue for these items.
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.
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).
3Ampčre name for cable-laying ship is noted in description in Michel catalog.
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.
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.
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.
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.
A summary by metric system unit name postal items listed in the table immediately above.
Also available in spreadsheet form.
| SI (metric system) Unit Name | Unit Symbol | Honoring | Number of Countries | Number of Items |
|---|---|---|---|---|
| ampere | A | A.-M. Ampčre | 9 | 17 |
| becquerel | Bq | A.-H. Becquerel | 9 | 23 |
| (degree) Celsius | °C | A. Celsius | 4 | 7 |
| coulomb | C | C. Coulomb | 2 | 10 |
| farad | F | M. Faraday | 13 | 31 |
| gray | Gy | L.H. Gray | 0 | 0 |
| henry | H | J. Henry | 1 | 3 |
| hertz | Hz | H.R. Hertz | 13 | 37 |
| joule | J | J.P. Joule | 1 | 1 |
| kelvin | K | Lord Kelvin (William Thomson) | 7 | 11 |
| newton | N | Sir I. Newton | 74 | 225 |
| ohm | Ω | G.S. Ohm | 2 | 4 |
| pascal | P | B. Pascal | 9 | 49 |
| siemens | S | W. von Siemens | 4 | 4 |
| sievert | Sv | R. Sievert | 0 | 0 |
| tesla | T | N. Tesla | 19 | 93 |
| volt | V | A. Volta | 10 | 27 |
| watt | W | J. Watt | 22 | 41 |
| weber | Wb | W.E. Weber | 2 | 6 |
| Total: 17 out of 19 names | Total: 589 items |
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