Ditunjukkan sekarang: Sao Tome Dan Principe - Setem-setem bayaran pos (1970 - 1979) - 1 Setem-setem.
1973
The 100th Anniversary of International Meteorological Organization or WMO-IMO
15. December WM: Tiada Perforasi: 13
![[The 100th Anniversary of International Meteorological Organization or WMO-IMO, jenis DN]](https://www.stampworld.com/media/catalogue/Sao-Tome-And-Principe/Postage-stamps/DN-s.jpg)
