Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 1
Lot 491:
1903, 7c olive bistre, left sheet margin horizontal imperforated pair printed on vertical wove paper, no gum as issued, NH, VF, C.v. $1,100, Unitrade C.v. $1,000, Est. $250-$300, Sc. # 92a
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