Now showing: Poland - Postage stamps - 1950 - International World Peace Day - 2 stamps.
15. May WM: None Sheetsize: 100 Design: T. Trepkowski Perforation: 10¾; 11¼; 11½
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![[International World Peace Day, type XLB]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/XLB-s.jpg)
![[International World Peace Day, type XLB1]](https://www.stampworld.com/media/catalogue/Poland/Postage-stamps/XLB1-s.jpg)
