Now showing: Guyana - Postage stamps (1970 - 1979) - 25 stamps.
20. January WM: None
23. February WM: 3 Perforation: 13½
2. May WM: 3 Perforation: 14¼
1. July WM: 3 Perforation: 14½
26. August WM: 3 Perforation: 14½
2. October WM: 3 Perforation: 14½
14. November WM: 3 Perforation: 14½