Worldwide Air Post Stamps and Postal History, One Man Collection of Tannu Tuva, Philatelic Rarities of the World, Part 1
Lot 327:
Description
1857, Prince Albert, two trial color proofs of 6p in greenish gray and black, both with reading up SPECIMEN overprint in carmine, printed on India paper, the last one – mounted on card, no gum as issued, VF, Unitrade #2TCviii, ix, C.v. CAD$650, Est. $200-$250, Scott #2
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