Polen
Visar nu: Polen - Postfrimärken (1860 - 2024) - 1 frimärken.
1970
The 150th Anniversary of the Scientific Society in Plock, founded in 1820
3. juni WM: Inga storlek på arket: 30 Design: Henryk Chyliński Gravyr: PWPW. Perforering: 11¾
![[The 150th Anniversary of the Scientific Society in Plock, founded in 1820, Typ BHP]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-stamps/BHP-s.jpg)
