Lot 91112 – 1931 Polar Zeppelin Flight 4M on Graf Zeppelin Polar Flight cover to the USA

1931 Polar Zeppelin Flight 4M on Graf Zeppelin Polar Flight cover to the USA, tied by violet Graf Zeppelin double circle ds in black-violet, red “POLARFAHRT ” cachet and “BRISE-GLACE “MALYGUN / ARCTIQUE” cds adjacent, reverse with “FIRST “INTOURIST” EXPEDITION ICE-BREAKER “MALIGN” hs and Hackensack arrival, very fine (Mi. €1’100).