Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1
Lot 221:
Description
1860, Steamship, imperforate plate proof of 12½c in dark blue, block of four printed on India paper, penciled positions 7-8/17-18 on reverse, no gum as produced, VF, Unitrade #10P, C.v. $320++, Est. $150-200 , Scott #10
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