The
centenary of the World Meteorological Organization, founded in 1873 as
International Meteorological Organization, was celebrated in 1973. Many stamps
were issued, depicting different sorts of weather, weather forecasting and related
subjects.
Link
Checklist on all WMO
Centenary stamps and other items by Don Hillger and Garry Toth.
Stamp catalogue
Austria
Belgium
Gilbert and Ellice
Islands
Netherlands
Niger
Portuguese Timor
Rhodesia
Tunisia
last revised: