Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 3

Soviet Union

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Start price: $150

Buyer's premium:

1958, Congress of International Democratic Women’s Federation (F.D.I.F.), 60k ultra and black, double (ghost) impression of black color, unfolded block of four, full OG, NH, VF, Est. $200-$250, Scott #2065 var