Lot
981 
Russia, Airmail, 1931, Polar Flight Zeppelins complete, perf 12 x 12½, on registered flight cover tied by "Leningrad 25.VII.31" zeppelin cds, registry etiquette and red flight cachet, Malygin receiving postmark, accompanied by matching flight post card franked with 30k & 1k Polar Flight Zeppelins imperf (Sc. C26+C28), Very Fine. Michel No. 402 C-405 C. Scott No. C30-C33 Estimate $250 - 350.
Realized: $425