Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Lot 814:
1909, President Barclay, Ships, Plants, Views, 1c-75c, imperforate plate proofs in black on thin wove paper, complete set of ten in blocks of four, except 50c and 75c are in two pairs, most with sheet margins, top left stamp of 5c has small thin, no gum as produced, VF and scarce set in multiples, Est. $400-$450, Scott #115-24
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