Now showing: Guinea Bissau - Postage stamps (1974 - 2018) - 2057 stamps.
8. July WM: None Perforation: 11
![[The 100th Anniversary of the Universal Postal Union (1974) - Red Overprint, type S3]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/S3-s.jpg)
12. September WM: None Perforation: 11
![[Airmail - The 100th Anniversary of the Universal Postal Union, type ]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/0036-b.jpg)
12. September WM: None Perforation: 11
![[Airmail - The 100th Anniversary of the Universal Postal Union, type ]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/0036-b.jpg)
12. September WM: None Perforation: 13½
![[The 3rd Anniversary of the Death of Amilcar Cabral, 1924-1973, type T]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/T-s.jpg)
![[The 3rd Anniversary of the Death of Amilcar Cabral, 1924-1973, type T1]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/T1-s.jpg)
![[The 3rd Anniversary of the Death of Amilcar Cabral, 1924-1973, type T2]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/T2-s.jpg)
![[The 3rd Anniversary of the Death of Amilcar Cabral, 1924-1973, type T3]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/T3-s.jpg)
4. October WM: None Perforation: 13½
![[Airmail - "Apollo-Soyuz" Space Link, type U]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/U-s.jpg)
![[Airmail - "Apollo-Soyuz" Space Link, type V]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/V-s.jpg)
![[Airmail - "Apollo-Soyuz" Space Link, type W]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/W-s.jpg)
![[Airmail - "Apollo-Soyuz" Space Link, type X]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/X-s.jpg)
![[Airmail - "Apollo-Soyuz" Space Link, type XXX]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/XXX-s.jpg)
![[Airmail - "Apollo-Soyuz" Space Link, type Y]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/Y-s.jpg)
4. October WM: None Perforation: 13½
![[Airmail - "Apollo-Soyuz" Space Link, type U]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/U-s.jpg)
![[Airmail - "Apollo-Soyuz" Space Link, type V]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/V-s.jpg)
![[Airmail - "Apollo-Soyuz" Space Link, type W]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/W-s.jpg)
![[Airmail - "Apollo-Soyuz" Space Link, type X]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/X-s.jpg)
![[Airmail - "Apollo-Soyuz" Space Link, type XXX]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/XXX-s.jpg)
![[Airmail - "Apollo-Soyuz" Space Link, type Y]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/Y-s.jpg)
4. October WM: None Perforation: 13½
![[Airmail - "Apollo-Soyuz" Space Link, type ]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/0056-b.jpg)
4. October WM: None Perforation: 13½
![[Airmail - "Apollo-Soyuz" Space Link, type ]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/0056-b.jpg)
18. October WM: None Perforation: 13½
![[Airmail - The 100th Anniversary of the Telephone, type AD]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AD-s.jpg)
![[Airmail - The 100th Anniversary of the Telephone, type AE]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AE-s.jpg)
![[Airmail - The 100th Anniversary of the Telephone, type AF]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AF-s.jpg)
18. October WM: None Perforation: 13½
![[Airmail - The 100th Anniversary of the Telephone, type AD]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AD-s.jpg)
![[Airmail - The 100th Anniversary of the Telephone, type AE]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AE-s.jpg)
![[Airmail - The 100th Anniversary of the Telephone, type AF]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AF-s.jpg)
18. October WM: None Perforation: 13½
![[Airmail - The 100th Anniversary of the Telephone, type AD]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AD-s.jpg)
![[Airmail - The 100th Anniversary of the Telephone, type AE]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AE-s.jpg)
![[Airmail - The 100th Anniversary of the Telephone, type AF]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AF-s.jpg)
18. October WM: None Perforation: 13½
![[Airmail - The 100th Anniversary of the Telephone, type AD]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AD-s.jpg)
![[Airmail - The 100th Anniversary of the Telephone, type AE]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AE-s.jpg)
![[Airmail - The 100th Anniversary of the Telephone, type AF]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AF-s.jpg)
18. October WM: None Perforation: 13½
![[Airmail - The 100th Anniversary of the Telephone, type ]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/0063-b.jpg)
3. November WM: None Perforation: 14
![[Airmail - Winter Olympic Games - Innsbruck, Austria, type ]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/0070-b.jpg)
24. November WM: None Perforation: 13½
![[Olympic Games - Montreal, Canada, type ]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/0077-b.jpg)
27. January WM: None Perforation: 13½
![[The 200th Anniversary of American Revolution, type AV]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AV-s.jpg)
![[The 200th Anniversary of American Revolution, type AW]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AW-s.jpg)
27. January WM: None Perforation: 13½
![[The 200th Anniversary of American Revolution, type AW]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AW-s.jpg)
27. January WM: None Perforation: 13½
![[The 200th Anniversary of American Revolution, type AV]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AV-s.jpg)
27. January WM: None Perforation: 13½
![[The 200th Anniversary of American Revolution, type AV]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AV-s.jpg)
27. January WM: None Perforation: 13½
![[The 200th Anniversary of American Revolution, type AW]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AW-s.jpg)
27. January WM: None Perforation: 13½
![[Airmail - Success of "Viking" Mission, type AX]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AX-s.jpg)
27. January WM: None Perforation: 13½
![[Airmail - Success of "Viking" Mission, type AY]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AY-s.jpg)
27. January WM: None Perforation: 13½
![[Airmail - Success of "Viking" Mission, type AX]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AX-s.jpg)
27. January WM: None Perforation: 13½
![[Airmail - Success of "Viking" Mission, type AY]](https://www.stampworld.com/media/catalogue/Guinea-Bissau/Postage-stamps/AY-s.jpg)