Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1
Lot 1545:
1908-09, Universal Penny Postage, redrawn 1p, King Edward VII ½p, two imperforate plate proofs in black, horizontal pairs printed on thin card or on chalky paper, no gum as produced, VF, Est. $200-$250, Scott #129, 130
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