10c Black Brown, Without "SAMPLE" Ovpt. (209S-K var). Top imprint, plate no. 548 and letter "M" block of 12, part arrow and natural s.e. at left, original gum, pos. 8-10 Mint N.H., a few other stamps h.r., exceptionally well-centered, couple tiny thin specks, still Extremely Fine and rare, the shade of this variety is more of a "grayish brown" and is quite often mistaken for the issued stamp No. 209, this is the only plate block contained in Power Search and may well be unique, ex Wampler, with 2000 P.F. certificate, Scott Retail as singles which does not convey the rarity of this plate block

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