Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 2

Soviet Union

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Start price: $75

Buyer's premium:

1925, Lenin Mausoleum, imperforated plate proof of 7k in deep blue, printed on Goznak security paper, ironed crease and paper scratch on reverse, no gum as issued, F/VF appearance, Est. $100-$150, Scott #294