Poland
Now showing: Poland - Postage stamps (1860 - 2024) - 1 stamps.
1986
Intellectuals Congress for keeping World Peace, held in Warsaw
16. January WM: None Sheetsize: 50 Design: K. Śliwka Engraving: PWPW. Perforation: 11½:11
![[Intellectuals Congress for keeping World Peace, held in Warsaw, type CUD]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-stamps/CUD-s.jpg)