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

Soviet Union Stamps of 1941-91

The auction will start in __ days and __ hours

Start price: $600

Buyer's premium:

1988, Antarctic Expedition, 20k multicolored, top right corner sheet margin imperforated block of four, full OG, NH, VF and scarce, Est. $800-$1,000, Sc. #5713 imp