Visar nu: Polen - Postfrimärken (1950 - 1959) - 1 frimärken.
1950
3rd Congress of Post Office Employees
21. januari WM: Inga storlek på arket: 100 Design: B. Kleczewski Gravyr: B. Brandt Perforering: 12½ x 12¾
![[3rd Congress of Post Office Employees, Typ XKU]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-stamps/XKU-s.jpg)
