1923 (27 Aug) Civilian Pigeon Mail, violet "Depesza Poczta Golebia" (Telegram sent by Pigeon Post) two line handstamp on 54 1/2 x 89mm flimsy to Mr. A. Kopczewski in Katowice, message written in Polish translates to "Dear Sir, Please return this piece of paper 26-8-23", minor toned spots, fine and extremely rare piece, one of only three (!) recorded, signed Z.Korszen, with his 2011 certificate (Pigeon Post telegrams are among the greatest rarities of Polish Aero philately) (Image)

Est.$2,500

1947 overprinted "Lotnicza" and surcharged 40zl (red) and 50zl (black), imperf. horizontal pairs showing trial impressions, with issued stamps included for comparison, v.f. (Fi.441,442Nd, 1,600zl) (Cat No. C19-20P) (Image)

Est.$150

1948 Roosevelt, 80gr gray, overprinted "Groszy" in red, six sheetlets of 16, some stamps with inverted or missing handstamps, n.h., marginal creases, stamps n.h., v.f. (Cat No. C26Avar) (Image)

Est.$250

1948 Roosevelt, Kosciuszko, Pulaski, 9 souvenir sheets of three, n.h., occasional toned spot or marginal wrinkles, mostly fine-v.f., cat. $2925 (Cat No. C26c) (Image)

Cat. $2925, Est.$750

1948 Roosevelt, Kosciuszko, Pulaski, souvenir sheet of three, used on registered cover to New York, with arrival on reverse, v.f. (Cat No. C26c) (Image)

Est.$150