Fifth Congress for Polish Technicians in Katowice 1966
Now showing: Poland - Postage stamps - 1966 - Fifth Congress for Polish Technicians in Katowice - 2 stamps.
1966
Fifth Congress for Polish Technicians in Katowice
10. February WM: None Sheetsize: 20 Design: A. Heidrich Engraving: PWPW (Państwowa Wytwórnia Papierów Wartościowych) Perforation: 11
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