50th Anniversary of the World Meteorological Oganization (WMO) (1950-2000)

Below is a checklist of 50th Anniversary of the World Meteorological Oganization (WMO) 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.

^*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.

¹These items were issued on March 23, but otherwise do not indicate World Meteorological Day (WMD) directly.
²These items were issued during year 2000, but otherwise do not indicate the 50th anniversary of the WMO directly.

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