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: $75

Buyer's premium:

1930, Educational Exhibition Issue, 10k olive green, nine mint stamps, including unfolded block of four and five singles, one of which with vertical position of watermark, full OG, NH (block and variety) or LH, F/VF, Est. $100- $150 (website photo), Sc. #435, var