World Peace Congress, Warsaw 1950
Now showing: Poland - Postage stamps - 1950 - World Peace Congress, Warsaw - 1 stamps.
1950
World Peace Congress, Warsaw
31. August WM: None Sheetsize: 100 Design: T. Gronowski Engraving: Polska Wytwórnia Papierów Wartościowych. Perforation: 12½ x 12¾
![[World Peace Congress, Warsaw, type XLE]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/XLE-s.jpg)