Bidspirit auction | Worldwide Aerophilately - Germany

Worldwide Aerophilately - Germany - 1931, North Pole Flight of Graf Zeppelin, brown overprints ''Polar-Fahrt 1931'' on 1m, 2m and 4m, complete set of three, full OG, LH (2m and 4m) or previously hinged, VF, C.v. $710, Mi #456-58, €900 , Sc. #C40-42