Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Friday, May 5, 2023 at 3:00 PM UTC
Lot 1100:
1945, Academy of Sciences, 30k blue violet, bottom left corner sheet margin horizontal pair, imperforate between stamps, full OG, NH, VF, Est. $250-$300,Scott #987a
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