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

Poland - Air Post stamps

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Start price: $750

Buyer's premium:

‘GROSZY” OVERPRINTS ON ROOSEVELT STAMP AND FREEDOM AND DEMOCRACY SOUVENIR SHEET: 1950, 5 sheets of 16, 7 single stamps and 5 souvenir sheets, each stamp with ”Groszy” overprint in various positions in black, red or violet, in addition cover from Gdynia with complete set of three bearing inverted overprints, stamps with full OG, some souvenir sheets have disturbed gum, still VF and outstanding unit, most of the items expertized by T. Gryzewski, Fischer #489-91, Block 11 var, C.v. is over PLN32,000=US$7,450, Est. $1,500-$2,000, Scott #C26A, C26Cd var