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

Russian Semi-Postal Issues

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Start price: $750

Buyer's premium:

1922, Philately for the Children, black overprint on imperforate 1k orange, bottom right corner margin single, overprint of the first printing, position 25, full OG, light trace of hinge, VF and rare positional piece, Z. Mikulski certificate, Est. $1,500-$1,800, Scott #B29