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

Soviet Union

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Start price: $100

Buyer's premium:

1989, Letter Writing Week, 5k multicolored, bottom left corner sheet margin imperforate block of four, printed on thick glossy paper, control lights on selvages, no gum as issued, NH, VF and guaranteed genuine, suggested retail is $650, Scott #5795 imp