Visar nu: São Tomé och Principe - Postfrimärken (1950 - 1959) - 2 frimärken.
1958
World's Fair - Brussels, Belgium
15. juli WM: Inga Perforering: 12 x 11½
![[World's Fair - Brussels, Belgium, Typ BZ]](https://www.stampworld.com/media/catalogue/Sao-Tome-And-Principe/Postage-stamps/BZ-s.jpg)
1958
The 6th Congress on Tropical Medicine
25. september WM: Inga Perforering: 13
![[The 6th Congress on Tropical Medicine, Typ CA]](https://www.stampworld.com/media/catalogue/Sao-Tome-And-Principe/Postage-stamps/CA-s.jpg)
