Ditunjukkan sekarang: Guinea di bawah naungan Portugis - Setem-setem bayaran pos (1950 - 1959) - 1 Setem-setem.
1952
International Congress on Tropical Medicine and Malariology, Lisbon
June WM: Tiada Perforasi: 13¼
![[International Congress on Tropical Medicine and Malariology, Lisbon, jenis BD]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-stamps/BD-s.jpg)
