Airmail - Issue of 1975 Overprinted "50 Aniversario del Primer Vuelo de PAN AM en Costa Rica 1928-1978" 1978
Now showing: Costa Rica - Postage stamps - 1978 - Airmail - Issue of 1975 Overprinted "50 Aniversario del Primer Vuelo de PAN AM en Costa Rica 1928-1978" - 3 stamps.
![[Airmail - Issue of 1975 Overprinted "50 Aniversario del Primer Vuelo de PAN AM en Costa Rica 1928-1978", type XR]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/XR-s.jpg)
![[Airmail - Issue of 1975 Overprinted "50 Aniversario del Primer Vuelo de PAN AM en Costa Rica 1928-1978", type XR1]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/XR1-s.jpg)
![[Airmail - Issue of 1975 Overprinted "50 Aniversario del Primer Vuelo de PAN AM en Costa Rica 1928-1978", type XR2]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/XR2-s.jpg)