Polen
Viser nå: Polen - Postfrimerker (1860 - 2024) - 1 frimerker.
2018
The 100th Anniversary of the Patent Office
26. November VM: Ingen Arkstørrelse: 4 x 1 Design: Roch Stefaniak Gravering: PWPW (Państwowa Wytwórnia Papierów Wartościowych) Perforering: 11½:11
![[The 100th Anniversary of the Patent Office, type ]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-stamps/5059-b.jpg)
