Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2

Poland - Air Post stamps

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Start price: $150

Buyer's premium:

1950 (December 21), Freedom and Democracy, souvenir sheet of 80zl, 100zl, 120zl with double red overprint ”Groszy”, used on registered cover in Warsaw, backstamped on December 22, some cover wrinkles, still F/VF, expertized by T. Gryzewski, Fischer Block 11, C.v. PLN6,000, Scott #C26Cd var