Poland
Now showing: Poland - Postage stamps (1860 - 2024) - 1 stamps.
1961
Fifth Trade Union Congress
20. November WM: None Sheetsize: 70 Design: S. Jasiński Engraving: B. Kowalska Perforation: 12:12½
![[Fifth Trade Union Congress, type AHC]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-stamps/AHC-s.jpg)