Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 3

Russian Air Post Stamps and Covers

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1955, North Pole – Moscow Flight, red overprints on definitive stamps of 1r and 2r, two horizontal pairs with top line of overprint is 14.2mm (type II) and 15mm (type III, wide space between ”Sev.” and ”polus”), full OG, NH, VF, only one stamp of type III exists in sheet of 72 of the second issue overprints, Scott #C95-96, var