Airmail - The 16th Convention of Radio Amateurs Federation of Central America and Panama, San Jose 1975
Now showing: Costa Rica - Postage stamps - 1975 - Airmail - The 16th Convention of Radio Amateurs Federation of Central America and Panama, San Jose - 3 stamps.
1975
Airmail - The 16th Convention of Radio Amateurs Federation of Central America and Panama, San Jose
16. April WM: None Perforation: 13½
![[Airmail - The 16th Convention of Radio Amateurs Federation of Central America and Panama, San Jose, type UN]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/UN-s.jpg)
![[Airmail - The 16th Convention of Radio Amateurs Federation of Central America and Panama, San Jose, type UO]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/UO-s.jpg)
![[Airmail - The 16th Convention of Radio Amateurs Federation of Central America and Panama, San Jose, type UP]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/UP-s.jpg)
