Air Post stamps. 1948, Freedom and Democracy, Great Personalities, 80zl, 100zl and 120zl, complete set of three and souvenir sheet, in addition FDC with complete set addressed to NYC, set and souvenir sheet with full OG, NH, VF, Fischer #489-91, Block 11, C.v. PLN2,410=US$570 (Image)

Air Post stamps. 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 (Image)

Air Post stamps. '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 (Image)