The 150th Anniversary of the Scientific Society in Plock, founded in 1820 1970
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1970
The 150th Anniversary of the Scientific Society in Plock, founded in 1820
3. jún WM: nikto Veľkosť hárka: 30 Dizajn: Henryk Chyliński Rytina: PWPW. Perforácia: 11¾
![[The 150th Anniversary of the Scientific Society in Plock, founded in 1820, typ BHP]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/BHP-s.jpg)
