1931 USSR Graf Zeppelin Polar Flight Cover IMPERFORATE Malygin Prof Wiese Rare. Up for sale is a premium, authentic, and highly scarce 1931 Soviet Arctic flight postal cover featuring the RARE IMPERFORATE stamp varieties. This historic item was carried during the legendary LZ 127 Graf Zeppelin Polar Expedition (Polarfahrt). This exceptional cover was mailed from Leningrad, flown north by the Graf Zeppelin, and exchanged with the crew of the Soviet Icebreaker “Malygin” (Malyguin) at Hooker Island (Franz Josef Land) on July 27, 1931. Rarity Feature: Features the highly sought-after IMPERFORATE varieties with excellent margins. Wiese (Wladimir Juljewitsch Wiese) aboard the Icebreaker Malygin. Postal Markings: Crisp red semi-circular “Luftschiff Graf Zeppelin Polarfahrt 1931″ cachet. Leningrad departure cancellations dated 25. Circular Malygin arctic transition/arrival cancellation “Brise-Glace Malyguin ARCTIQUE” dated 27. Soviet “Par Avion /?????????????? ” label firmly affixed. Condition: Excellent condition with wide margins around the imperforate stamps. Clean edges, no major rips or compromises to the postal history elements. Please review the high-resolution images closely for details on condition and margins. This is not a reproduction or a copy.