Airmail - The 30th Anniversary of Central American University Confederation 1978
Now showing: Costa Rica - Postage stamps - 1978 - Airmail - The 30th Anniversary of Central American University Confederation - 1 stamps.
1978
Airmail - The 30th Anniversary of Central American University Confederation
18. September WM: None Perforation: 11
![[Airmail - The 30th Anniversary of Central American University Confederation, type XP]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/XP-s.jpg)
