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: $350

Buyer's premium:

1935, Mikhail Kalinin, 20k black brown, nice four-side margins imperforated single, full OG, previously hinged, VF, C.v. $1,500, Est. $450-$550, Sc. #576a