40L1, City Despatch Post, New York, NY, 1842 3c Black on Grayish, bottom margin bock of 24 (described as a half sheet although this stamp was printed in sheets of 42), o.g., NH except positions 1, 2, 5, 6, and 7, selvage with "CEC" (Chapman) handstamp, gum stains at sides, extremely fine and rare large multiple of the first adhesive postage stamp issued in the Western Hemisphere, 2022 Philatelic Foundation certificate (Scott $12,000 as six blocks of four)