Costa Rica
Now showing: Costa Rica - Postage stamps (1863 - 2023) - 1 stamps.
1978
Airmail - The 6th Inter-American Philatelic Exhibition - Buenos Aires, Argentina
24. October WM: None Perforation: 16
![[Airmail - The 6th Inter-American Philatelic Exhibition - Buenos Aires, Argentina, type XQ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Costa-Rica/Postage-stamps/XQ-s.jpg)