Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Lot 728:
Description
1929, Pioneer’s Assembly, 14k gray blue, comb perforation 12½x12, vertical position of watermark Borders and Rosettes, raster square, block of 35 (7×5), numerous printing flaws presented, folded between 4th and 5th vertical rows, full OG, NH, VF, C.v. $490++, Est. $200-$250, Scott #412
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