1930 South America Flight, 2m and 4m (2), used on legal size envelope from Friedrichshafen to Lakehurst, with appropriate cachet and arrival pmk (catalogued as used off cover) cat. $900 (Cat No. C38-39) (Image)

Cat. $900, Est.US$250

1930 South America Flight, 2m and 4m, used on flown DOX cover to Rio de Janeiro, with appropriate cachets and arrival pmk, fine-v.f. (catalogued as used off cover) cat. $600 (Cat No. C38-39) (Image)

Cat. $600, Est.US$250

1931 Polar Flight, 1m carmine used as regular postage on registered cover from Munich to USA, with arrival pmk, also another copy used on flown picture postcard from Friedrichshafen (24.7.31), with Polar Flight cachet and Leningrad (25.7.31) arrival pmk, minor cover tears away from the stamp, fine (Cat No. C40) (Image)

Est.US$150