1930 (18 May) South America Flight cover franked with 4m (Sudamerika Fahrt) and used in combination with additional stamps (one United States 2c red), with First Catapult Flight D.1717 to New York (6 May 1930), appropriate cachets, transit and arrival postmarks, fine and scarce combination Catapult/Zeppelin (Image)

Est.$500

1931 Polar Flight, set of three, 1m and 2m on postcards, 4m on cover, various cancellations, each with appropriate Polarfahrt cachet, last two with Icebreaker Malyguin arrival, v.f. (Cat No. C40-42) (Image)

Est.$500

1931 Polar Flight, set of three, 1m and 2m on cards addressed to Stockholm, 4m on cover to USA, with Friedrichshafen Round Trip markings, last two with Icebreaker Malyguin arrival markings, cover folded away from the stamp, fine-v.f., with Friedl certificates from 1m and 2m (Cat No. C40-42) (Image)

Est.$500

1931 2nd SAF ppc, Cape Verde drop, v.f. (Cat No. Si.129Ab) (Image)

Est.$250

1933 Chicago Flight, registered cover from Friedrichshafen to Campo Grande, Brazil, franked with 2x1M and 1,05M, with appropriate cachet and arrival pmk, filing folds away from the stamps, fine-v.f. (Cat No. C43) (Image)

Est.$250