Poland
Now showing: Poland - Postage stamps (1860 - 2024) - 1 stamps.
2015
Optimist World Championship
26. August WM: None Sheetsize: 12 Design: Jacek Konarzewski Engraving: PWPW (Polska Wytwórnia Papierów Wartościowych) Perforation: 11½
![[Optimist World Championship, type GQK]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Poland/Postage-stamps/GQK-s.jpg)