Auction 90, Session 2 - Worldwide Rare Stamps and Postal History

Soviet Union Stamps of 1923-40

The auction will start in __ days and __ hours

Start price: $150

Buyer's premium:

1938, North Pole Flight, 80k dark red and carmine, double impression of the flag variety, bottom sheet margin single, full OG, LH, F/VF centering, scarce variety, only one sheet of 50 was recorded, C.v. $2,000, Est. $250-$350, Sc. #628 var