Now showing: Portuguese Guinea - Postage stamps (1880 - 1973) - 1 stamps.
1952
International Congress on Tropical Medicine and Malariology, Lisbon
June WM: None Perforation: 13¼
![[International Congress on Tropical Medicine and Malariology, Lisbon, type BD]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-stamps/BD-s.jpg)
