Airmail - The 150th Anniversary of the Birth of Heinrich von Stephan (Founder of UPU) 1981
Now showing: Costa Rica - Postage stamps - 1981 - Airmail - The 150th Anniversary of the Birth of Heinrich von Stephan (Founder of UPU) - 3 stamps.
1981
Airmail - The 150th Anniversary of the Birth of Heinrich von Stephan (Founder of UPU)
6. May WM: None Perforation: 10¾
![[Airmail - The 150th Anniversary of the Birth of Heinrich von Stephan (Founder of UPU), type ABM]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/ABM-s.jpg)
![[Airmail - The 150th Anniversary of the Birth of Heinrich von Stephan (Founder of UPU), type ABN]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/ABN-s.jpg)
![[Airmail - The 150th Anniversary of the Birth of Heinrich von Stephan (Founder of UPU), type ABO]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/ABO-s.jpg)
