Polen
Viser nu Polen - Post frimærker (1860 - 2024) - 1 frimærker.
1970
The 150th Anniversary of the Scientific Society in Plock, founded in 1820
3. juni VM: Ingen Arkstørrelse: 30 Design: Henryk Chyliński Gravering: PWPW. Perforeringer: 11¾
![[The 150th Anniversary of the Scientific Society in Plock, founded in 1820, type BHP]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-stamps/BHP-s.jpg)
