Russia, 1931, Zeppelin North Pole Flight Covers. First cover franked with 35k + 2r imperfs, tied by 25.VII.31 Leningrad airpost "Zeppelin" cancels, with red Flight cachet and IceBreaker "Malygin" 27.VII.31 cancel; purple Leningrad registry marking, Braunschweig & Berlin receivers on reverse; 2nd item is fancy postcard franked with 30k+1r imperfs, also with Leningrad airpost cancel, no receivers on reverse; handsome Very Fine appearance. Sieger Nos. 120.Ba)., Very Fine. Scott No. C26-C29  Estimate $300 - 400. $0 (Image)