Poland
Now showing: Poland - Postage stamps (1860 - 2024) - 1 stamps.
1972
Trade Union Congress
13. November WM: None Sheetsize: 50 Design: K. Śliwka Engraving: PWPW. Perforation: 11½:11
![[Trade Union Congress, type BPB]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-stamps/BPB-s.jpg)