Auction 90, Session 1 - Worldwide Rare Stamps and Postal History
Lot 477:
1860-63, Queen Victoria, three imperforated trial color proofs of 10c, two in black, one of which with red diagonal serif lettering ”SPECIMEN” overprint (type A), and one in blue, all printed on India paper, nice and fresh, no gum as produced, VF, Unitrade #12TC, i, xii, C.v. CAD$400, Sc. #12
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