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: $7,500

Buyer's premium:

1937, Architectural Projects, 40k violet, souvenir sheet of four without text at the top and bottom, size 120x92mm, pin-point translucent natural inclusion at the bottom margin, nice condition, full OG, NH, VF and extremely rare, expertized by Z. Mikulski, Sc. #603a var