Guinea Bissau
Now showing: Guinea Bissau - Postage stamps (1974 - 2018) - 1 stamps.
1990
International Stamp Exhibition "BELGICA '90" - Brussels, Belgium
1. June WM: None Perforation: 14¼
![[International Stamp Exhibition "BELGICA '90" - Brussels, Belgium, type ]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/0776-b.jpg)