all stamps : Stamps for sale - Guinea Bissau
Now showing: Guinea Bissau - Postage stamps (1974 - 2018) - 2 stamps.
1976
Airmail - "Apollo-Soyuz" Space Link
4. October WM: None Perforation: 13½
![[Airmail - "Apollo-Soyuz" Space Link, type W]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Guinea-Bissau/Postage-stamps/W-s.jpg)
1976
Airmail - "Apollo-Soyuz" Space Link
4. October WM: None Perforation: 13½
![[Airmail - "Apollo-Soyuz" Space Link, type W]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Guinea-Bissau/Postage-stamps/W-s.jpg)