Airmail - The 150th Anniversary of the Birth of Heinrich von Stephan (Founder of UPU), 1831-1897 1981
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1981
Airmail - The 150th Anniversary of the Birth of Heinrich von Stephan (Founder of UPU), 1831-1897
7. Januar Wz: Keine Zähnung: 13
![[Airmail - The 150th Anniversary of the Birth of Heinrich von Stephan (Founder of UPU), 1831-1897, Typ VO]](https://www.stampworld.com/media/catalogue/Gabon/Postage-stamps/VO-s.jpg)
