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Metric Measurements
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Metric Measurements
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Below is a checklist of metric measurements (consisting of a number and associated metric units) on postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.). 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.
This list does not include postal items specifically about the Metric System, many of which show metric units.
The items below are organized into the following categories:
| Country | Catalog Number* | Type of Item** | Year of Issue | Notes on Content |
|---|---|---|---|---|
 |
||||
| Length: meter (m) and kilometer (km) | ||||
| Austria | 1359 (Mi1857) | 1986 | "3106 m" elevation, Sonnblick | |
| Austria | 1359 maxi | Maxicard | ||
| Austria | 1359 fdc | Stamp and cachet on FDC | ||
| Australia | None | Stamp on aerogramme | 198? | "150 km", road sign, kangaroos |
| Bulgaria | 301 (Mi304) | 1936 | "2925 m" elevation, Mt. Moussalla | |
| Canada | 1063 (Mi972) | 1985 | "21.3 m" elevation, lighthouse, Sisters Islets | |
| Canada | 1064 (Mi973) | "22.6 m" elevation, lighthouse, Pelee Passage | ||
| Canada | 1065 (Mi974) | "25.3 m" elevation, lighthouse, Haut-fond Prince | ||
| Canada | 1066 (Mi975) | "15.2 m" elevation, lighthouse, Rose Blanche | ||
| Canada | 1066b (BL4) | MS4 (1063-1066) | various "m" elevations, lighthouses | |
| Canada | 1831b (Mi?) | One of MS4 (1831 (a-d)) (BL52) | 2000 | "100 m" map scale, dam |
| Canada | 1960a (Mi2074) | From MS8 (1960 (a-h)) | 2002 | "5959 m" elevation, Mt. Logan, Canada |
| Canada | 1960b (Mi2075) | "5633 m" elevation, Mt. Elbrus, Russia | ||
| Canada | 1960c (Mi2076) | "4884 m" elevation, Puncak Jaya, Indonesia | ||
| Canada | 1960d (Mi2077) | "8850 m" elevation, Mt. Everest, Nepal/China | ||
| Canada | 1960e (Mi2078) | "5984 m" elevation, Mt. Kilimanjaro, Tanzania | ||
| Canada | 1960f (Mi2079) | "4897 m" elevation, Vinson Massif, Antarctica | ||
| Canada | 1960g (Mi2080) | "6962 m" elevation, Mt. Aconcagua, Argentina | ||
| Canada | 1960h (Mi2081) | "6194 m" elevation, Mt. McKinley, Alaska | ||
| China (People's Republic) | None | Postal card | 2002 | "Ozone hole has been as large as 24 million sq km" (translated from the Chinese2) |
| Congo (People's Republic, Brazzaville) | 899 (Mi1240) | 1991 | "7371 km" distance, Trans-Siberian Railroad | |
| Congo (People's Republic, Brazzaville) | 900 (Mi1241) | |||
| Czechoslovakia | 837 (Mi1056) | 1957 | "2638 m" elevation, High Tatra | |
| Czechoslovakia | 836-838 fdc | One of three stamps on FDC | ||
| Denmark | 1022 (Mi1096) | 1995 | "1 km" map scales, Danish islands | |
| Denmark | 1023 (Mi1097) | |||
| Denmark | 1024 (Mi1098) | |||
| Denmark | 1025 (Mi1099) | |||
| Faroe Islands | 161 (Mi154) | 1987 | "2 km" map scale, island | |
| France | None | Meter on cover | 1951 | "300 mètres" height, Eiffel Tower |
| Korea (North) | Unknown (new issue) | SS1 | 2009 | "490 km x 1426 km" perigee and apogee distances, intended orbit for Kwangmyongsong-2 satellite |
| Monaco | 672 (Mi873) | 1967 | various "m" depths (implied units), water soundings | |
| New Zealand | 1680a (BL124) | In (upper-right) margin of MS4 (1677-1680) | 2001 | various "km" distances, signpost |
| Pakistan | 647 (Mi653) | 1985 | "8??? m" elevation, Mt. Rakaposhi | |
| Pakistan | 648 (Mi654) | "8125 m" elevation, Mt. Nangaparbat | ||
| Paraguay | C411 (BL247) | In (lower-left) margin of SS1 | 1975 | "40,000 km" distance, Pioneer-11 to reach Jupiter |
| Poland | 1010 (Mi1258) | 1961 | "700,000 km" distance, traveled by Vostok-2 | |
| Poland | 1093 (BL28) | In (upper) margin of SS1 | 1962 | "2,600,600 km" and "2,000,000 km" distances, traveled by Vostok-1 and Vostok-2 |
| Poland | 2355 (Mi2647) | 1979 | "646 m" height, broadcasting tower | |
| Russia | 5106 (BL160) | SS1 | 1982 | "8848 m" elevation, Mt. Everest |
| Slovenia | 199 (Mi88) | 1994 | "2350 m" elevation, Mt. Ojstrica | |
| South Africa | 815 (Mi830) | 1991 | "4260 km" distance, Cape Town to Sanae (Base) | |
| Surinam | 385 (Mi601) | 1971 | "80 km" distance, Washington-Baltimore | |
| Surinam | 386 (Mi602) | "2500 km" distance, England-Sweden | ||
| Surinam | 387 (Mi603) | "384,400 km" distance, interplanetary TV | ||
| Switzerland | 946 (Mi1525) | 1994 | "-10,916 m" depth, bathyscale dive | |
| Switzerland | 947 (Mi1526) | "+16,940 m" altitude, stratospheric balloon flight | ||
| Tristan Da Cunha | 283 (Mi295) | 1980 | "5 km" and "5 mile" map scales, Tristan Island | |
| Tristan Da Cunha | 284 (Mi296) | 1980 | "10 km" and "10 mile" map scales, Gough Island | |
| United States | 3409a (Mi?) | From MS6 (3409 (a-f)) (BL55) | 2000 | "2.4 m" diameter, optical telescope, Hubble Space Telescope (HST) |
| United States | 3409c (Mi?) | "10 m" diameter, twin (optical and infrared) telescopes, Keck Observatory | ||
| United States | 3409f (Mi?) | "305 m" diameter, radio telescope, Aricebo Observatory | ||
| United States | 3409a fdc1 | Stamp on FDC | "2.4 m" diameter, optical telescope, Hubble Space Telescope (HST) | |
| United States | 3409a fdc2 | Stamp on FDC (different) | ||
| United States | 3409a fdc3 | Stamp on FDC (different) | ||
| Mass: gram (g) and kilogram (kg) | ||||
| Albania | 1360 (Mi1486) | 1971 | "173 kg" mass, Chicom-1 satellite | |
| Albania | 1362 (Mi1488) | "221 kg" mass, Chicom-2 satellite | ||
| Denmark | 833 (Mi890) | 1987 | "20 g" @ "14/kg", price sticker (error?) | |
| Romania | C56 (Mi1733) | 1958 | "1327 kg" mass, Sputnik-3 | |
| Romania | C56 fdc | Stamp on FDC | ||
| Russia (USSR) | 2083 (Mi2101) | Single + label | 1958 | "1327 kg" mass, Sputnik-3 (on label) |
| Pressure: hectopascal (hPa) and millimeter of Mercury (mm Hg) | ||||
| Belgium | B964 (Mi1934) | 1978 | "110-250 mm Hg" blood pressures, sphygmomanometer | |
| Uganda | 207 (Mi187) | 1978 | "0-240 mm Hg" blood pressures, sphygmomanometer | |
| Uganda | 210a (BL12) | On one of MS4 (207-210) | ||
| For weather-related pressures, see the Barometers, Atmospheric Pressure and Pressure Units page, as well as the Weather Maps page. | ||||
| Power: megawatt (MW) | ||||
| Poland | 2355 (Mi2647) | 1979 | "2 MW" power, broadcasting station | |
| Frequency: kilohertz (kHz) and megahertz (MHz) | ||||
| Comoro Islands | 47 (Mi41) | 1960 | "3331-7260 kcs"1, radio frequencies | |
| Ireland | 974 (Mi904) | One of pair (974a (973-974)) | 1995 | "102.7 MHz", radio frequency |
| Ireland | 974a fdc | Pair and cachet on FDC | ||
| Poland | 2355 (Mi2647) | 1979 | "227 kHz", broadcasting frequency | |
| Area: hectare (ha) | ||||
| Argentina | 2274 (Mi2879-2880) | Pair (2274 (a-b)) | 2004 | "millions of hectares", native forest area |
| Hungary | 2450 (Mi3170) | 1976 | "millionth hectare", reforestation | |
| Velocity/Speed: kilometers per hour (km/h) | ||||
| Argentina | 1331 (Mi1544) | 1981 | "80 km/h" (implied units), speed limit sign | |
| Argentina | 1331 fdc | Stamp on FDC | ||
| Portugal | 1113 (Mi1146) | See detail | 1971 | "km/h" velocity/speed, anemometer wind trace (It's not clear whether the "150" is the speed, or if it's an unrelated number associated with the upper graph) |
| Portugal | 1113 fdc | Stamp on FDC | ||
| Romania | 3499 (Mi4415) | 1975 | "0-100 km/h" (implied units) velocities/speeds, car speedometer | |
*Scott catalog number, unless prefixed with Mi or BL for Michel.
**FDC = First Day Cover; SS# = souvenir sheet, MS# = miniature sheet, where # = number of stamps in sheet, and the numbers in parentheses are the catalog numbers of the stamps in the sheet.
1"kcs" (kilocycles) is an old metric term for SI-metric "kHz" (kilohertz)
2Instead of the international symbol "km" (kilometer), the Chinese use the following characters 
.
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