Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1

United States - Official stamps

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Start price: $50

Buyer's premium:

1873, Post Office, Numerals, imperforate plate proofs on cards of 1(c)-90(c) in black, complete set of ten, no gum as produced, VF, C.v. $100, Scott #O47P4-56P4