Viser nå: Sao Tome og Principe - Postfrimerker (1970 - 1979) - 1 frimerker.
1973
The 100th Anniversary of International Meteorological Organization or WMO-IMO
15. December VM: Ingen Perforering: 13
![[The 100th Anniversary of International Meteorological Organization or WMO-IMO, type DN]](https://www.stampworld.com/media/catalogue/Sao-Tome-And-Principe/Postage-stamps/DN-s.jpg)
