Ditunjukkan sekarang: Sao Tome Dan Principe - Setem-setem bayaran pos (1950 - 1959) - 2 Setem-setem.
1958
World's Fair - Brussels, Belgium
15. July WM: Tiada Perforasi: 12 x 11½
![[World's Fair - Brussels, Belgium, jenis 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: Tiada Perforasi: 13
![[The 6th Congress on Tropical Medicine, jenis CA]](https://www.stampworld.com/media/catalogue/Sao-Tome-And-Principe/Postage-stamps/CA-s.jpg)
