History of Aviation, Rare Stamps and Postal History of the World, Part 3
Lot 1176:
RSFSR – SOVIET UNION MIXED FRANKING COVER: 1923 (December 3), cover from Novocherkassk (Don Obl) to Dresden, franked by three RSFSR definitives (two on reverse) and six Soviet Union values (all on reverse), all appropriate markings and Dresden ”12.23.12” arrival marking, mostly VF, N. Mandrovski certificate, Est. $500- $600, Sc. #234, 237, 250/56
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