Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Lot 994:
Description
1876-1900, 21 mostly mint stamps (3 – used) arranged on two pages from the Bianchi collection, including six imperforate proofs in gray (1), blue (2) and red (3), two horizontal strips of three (No.5 and No.7), full/part of OG, F/VF, C.v. close to $1,200, Est. $600-$650, Schmidt #1/7
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