Guinée-Bissau
Montre maintenant: Guinée-Bissau - Timbres-Poste (1974 - 2018) - 1 Timbres-poste.
1977
Airmail - The 100th Anniversary of the Universal Postal Union
30. septembre WM: Aucun Perforation: 13½
![[Airmail - The 100th Anniversary of the Universal Postal Union, type ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Guinea-Bissau/Postage-stamps/0099-b.jpg)