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Stevenson Screens
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Stevenson Screens
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Below is a checklist of Stevenson screens (weather instrument shelters) 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 authors using the e-mail addresses at the bottom of this page.
A Stevenson screen (also known as an instrument shelter) is a meteorological screen to shield instruments against precipitation and direct heat radiation from outside sources, while still allowing air to circulate freely around them. It forms part of a standard weather station. The screen creates, as near possible, a uniform environment in relation to the air outside, and is used to shelter various types of temperature and humidity measuring instruments. The smallest screens contain a dry bulb thermometer and a wet bulb thermometer. Larger screens also include minimum and maximum thermometers. Still-larger screens can contain recording instruments: a thermograph and/or a hygrograph, or a thermohygrograph which combines the functions of those two instruments.
The Stevenson screen was designed by Thomas Stevenson (1818-1887), a British civil engineer and father of the author Robert Louis Stevenson. All screens should be installed so that the sensitive parts of all sensors are at the same level, at 1.5 meters above the ground. Exceptions to this may be made in an area subject to accumulations of snow. The shelter should be movable or, if this is impractical, be mounted at a level above the highest expected accumulation of snow for that location. Meteorological screens that do not fit the specifications for Stevenson screens (directly above) are identified below as instrument shelters.
| Country | Catalog Number* | Type of Item** | Year of Issue | Notes on Content |
|---|---|---|---|---|
| Afghanistan | 647 | 1963 | Two Stevenson screens | |
| Afghanistan | 650 | Imperforate | 1963 | Two Stevenson screens |
| Afghanistan | C47 iC47 | 1963 | Two Stevenson screens | |
| Afghanistan | C49 | 1963 | Two Stevenson screens | |
| Afghanistan | 1360 | 1989 | Stevenson screen, door open | |
| Albania | 1208 | 1969 | Stevenson screen | |
| Algeria | 351 (Mi451) i351 | 1966 | Stevenson screen | |
| Algeria | 351 fdc | Stamp on FDC | ||
| Argentina | 1306 | 1981 | Stevenson screen | |
| Argentina | None | Cachet on cover | 1988 | Stevenson screen |
| Austria | 1169 | 1980 | Stevenson screen | |
| Australian Antarctic Territory | L102 | 1997 | Stevenson screen | |
| Australian Antarctic Territory | L102 maxi | Maxicard, also back | 1997 | Stevenson screen |
| British Antarctic Territory | 319 | 2002 | Stevenson screen, door open | |
| Canada | 479 fdc | Cachet on FDC | 1968 | Stevenson screen, cross-sectional view |
| Canada | 1287 fdc (Mi1196 fdc) | Cachet on FDC | 1990 | Stevenson screen, door open |
| Chad | 227 | 1970 | Stevenson screen, door open | |
| Chad | 227 proof1 | Die proof (orange) | ||
| Chad | 227 proof2 | Die proof (green) | ||
| Chad | 227 proof strip | Color proof strip | ||
| China (People's Republic) | 367-369 fdc | Cancel on FDC | 1958 | Stevenson screen |
| China (People's Republic) | 484 | 1960 | Stevenson screen | |
| China (People's Republic) | 1384 | 1978 | Stevenson screens (on two stamps and on cachet) | |
| China (People's Republic) | 1387 | |||
| China (People's Republic) | 1384-1388 fdc | Stamp and cachet on FDC | ||
| China (People's Republic) | 1516 | 1979 | Stevenson screen, door open | |
| China (People's Republic) | None | Postal card | 2002 | Stevenson screen |
| China (People's Republic) | None | Postal card (different) | 2002 | Multiple Stevenson screens |
| China (People's Republic) | None | Postal card | 2003 | Three Stevenson screens |
| China (People's Republic) | None | Postal card | 2007 | Three Stevenson screens |
| China (People's Republic) | None | Cancel on postal card | 2007 | Stevenson screen |
| China (People's Republic) | None | Cachet on postal card | 2007 | Stevenson screen |
| China (People's Republic) | None | Letter sheet, also front | 2007 | Stevenson screens |
| China (Taiwan) | 1651 | 1970 | Stevenson screen | |
| China (Taiwan) | 1651 specimen | Specimen | ||
| Croatia | None | Cancel on WMD1 cover | 1994 | Stevenson screen |
| Croatia | None | Cancel and cachet on WMD1 cover | 1994 | Stevenson screen |
| Croatia | None | Cancel (same) on WMD1 cover (different) | 1994 | Stevenson screen |
| Croatia | 513b fdc (Mi637 fdc) | Cancel on FDC | 2003 | Instrument shelter, round |
| Cuba | 1591 | 1971 | Stevenson screen | |
| Falkland Islands Dependencies | 1L50 | 1980 | Two Stevenson screens | |
| Falkland Islands Dependencies | 1L50 reissue | 1L50 reissued | 1985 | Two Stevenson screens |
| French Southern and Antarctic Territories | 231 | 1997 | Instrument shelter (at upper left) | |
| French Southern and Antarctic Territories | 257k | On stamp and in (right) margin of page from souvenir booklet of 28 (2x (257 (a-n))), also booklet back | 1999 | Stevenson screen |
| Germany (East) | 2091 cov | Cachet on cover | 1980 | Stevenson screen |
| Gilbert and Ellice Islands | 218 | 1973 | Stevenson screen, door open | |
| Gilbert and Ellice Islands | 219 | |||
| Gilbert and Ellice Islands | 218-221 fdc | Two stamps on FDC | ||
| Great Britain (Jersey) | 294 | One of booklet pane of 4 (294a (2x (293-294))) | 1982 | Stevenson screen |
| Great Britain (Jersey) | 1300 | 2008 | Stevenson screen | |
| Great Britain (Jersey) | 1297-1301 fdc | One stamp on FDC, also back | ||
| Great Britain (Jersey) | 1299a | In (lower) margin of MS10 | ||
| Greenland | 475a | SS1 | 2006 | Stevenson screen |
| Hungary | 2019 fdc i2019 fdc | Cancel on FDC | 1970 | Instrument shelter |
| India | 708 (Mi662) | 1975 | Two small instrument shelters for temperature and humidity sensors in automatic observing station | |
| India | 708 fdc | Stamp and cachet on FDC | ||
| India | 708 folder1 | FDC folder | ||
| India | 708 folder2 | FDC folder (different) | ||
| Iran | 1285 | 1964 | Stevenson screen | |
| Ivory Coast | 213 | 1964 | Stevenson screen | |
| Korea (North) | 3730 | Two of MS4 (2x 3730+2x 3731) | 1998 | Stevenson screen |
| Malagasy Republic | C116 | 1973 | Stevenson screen | |
| Mozambique | 1105 | 1989 | Stevenson screen, door open | |
| Namibia | 691 | 1991 | Stevenson screen (upside-down reflection in sunshine recorder / heliograph) | |
| Namibia | 692 | 1991 | Stevenson screen, door open | |
| Namibia | 693 | 1991 | Stevenson screen | |
| Namibia | 690-693 fdc | Three stamps on FDC | 1991 | Two Stevenson screens, one with door open, another in reflection |
| New Zealand | 794 | 1984 | Stevenson screen, door open | |
| New Zealand | 794a | MS4 (791-794) | 1984 | Stevenson screen, door open |
| Nigeria | 708 | 2000 | Stevenson screen | |
| Panama | 457D (Mi782) | 1964 | Three Stevenson screens, elevated more than usual | |
| Panama | 457D specimen | Specimen | ||
| Portugal | 1113 | 1971 | Stevenson screen | |
| Portugal | 1113 fdc | Stamp on FDC | ||
| Portugal | 1113-1115 fdc | One stamp on FDC | ||
| Romania | None | Stamped envelope | 1984 | Two Stevenson screens |
| Romania | None | Stamped envelope | 1984 | Stevenson screen (upside-down reflection in sunshine recorder / heliograph) |
| Romania | None | Stamped envelope | 1984 | Three Stevenson screens |
| Romania | None | Cachet on postcard | 2007 | Stevenson screen |
| Russia (USSR) | 1765 | 1955 | Two Stevenson screens | |
| Russia (USSR) | 1766 | 1955 | Two Stevenson screens | |
| Russia (USSR) | None | Postal card | 1955 | Stevenson screen |
| Russia (USSR) | C97 | 1956 | Three Stevenson screens | |
| Russia (USSR) | None | New Year's greeting card, also back | 1959 | Stevenson screen |
| Russia (USSR) | 2495 | 1961 | Stevenson screen | |
| Russia (USSR) | None | Stamped envelope | 1962 | Two Stevenson screens |
| Russia (USSR) | None | Cachet on stamped envelope | 1963 | Stevenson screen |
| Russia (USSR) | 3110 | 1965 | Stevenson screen | |
| Russia (USSR) | None | Stamped envelope | 1968 | Stevenson screen |
| Russia (USSR) | 3860 cov | Cachet on cover | 1971 | Stevenson screen |
| Russia (USSR) | None | Stamped envelope | 1976 | Stevenson screen |
| Russia (USSR) | None | Cachet on cover | 1981 | Stevenson screen |
| Russia (USSR) | None | Stamped envelope | 1985 | Stevenson screen |
| Russia (USSR) | None | Stamped envelope (different) | 1985 | Stevenson screen |
| Russia (USSR) | None | Cancel and cachet on stamped envelope | 1986 | Stevenson screen |
| Russia (USSR) | None | Postal card | 1987 | Two Stevenson screens |
| Russia (USSR) | None | Cancel on postal card | 1987 | Stevenson screen |
| Russia (USSR) | None | Stamped envelope, see detail | 1987 | Small instrument shelter |
| Russia (USSR) | None | Cancel on stamped envelope | 1989 | Stevenson screen |
| Saudi Arabia | 456 | 1967 | Stevenson screen | |
| Saudi Arabia | 457 | 1967 | Stevenson screen | |
| Saudi Arabia | 458 | 1967 | Stevenson screen | |
| Saudi Arabia | 459 | 1967 | Stevenson screen | |
| Saudi Arabia | 460 | 1967 | Stevenson screen | |
| Saudi Arabia | 670 | 1975 | Stevenson screen | |
| Senegal | 1441 i1441 | 2000 | Stevenson screen, door open | |
| Senegal | 1441 deluxe-proof | Deluxe proof | ||
| South Africa | 610-613 fdc1 | Cancel on FDC | 1983 | Stevenson screen, door open |
| South Africa | 610-613 fdc2 | Cancel (same) on FDC (different) | ||
| South Georgia and the South Sandwich Islands | 125 | 1987 | Stevenson screen | |
| Sweden | 1002 | One of strip of 2 (1002a (1001-1002)) | 1973 | Stevenson screen, door open |
| Sweden | 1002a fdc1 | One stamp on FDC | ||
| Sweden | 1002a fdc2 | One stamp on FDC (different) | ||
| Tristan da Cunha | Local | 19?? | Stevenson screen | |
| United Nations | 188-189 fdc | Cachet on FDC | 1968 | Stevenson screen |
| Uganda | 1194 (Mi1326) | 1994 | Stevenson screen | |
| Uganda | 1195 (Mi1327) | 1994 | Stevenson screen | |
| Uganda | 1197 (Mi1328) | 1994 | Stevenson screen, door open | |
| Upper Volta | 95 | 1962 | Instrument shelter, door open | |
| Vanuatu | 565 | 1992 | Stevenson screen | |
| Viet Nam | 2338 | 1992 | Two Stevenson screens | |
| Viet Nam | 2338-2339 fdc | One stamp on FDC |
*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.
1WMD = World Meteorological Day.
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