113L1, Overton & Co., 1844 (6c) Black on Greenish, uncancelled single on April 2, 1845 folded letter from Boston to New York City, small black "5" with red "Overton & Co. City Mail Office, 3 Broad Street" oval, cover addressed to New York, margins large to just touching at bottom (small part of "Free" visible), stamp with a small surface scrape under the second "T" of "Letter", cover horizontal file fold, very fine and fresh example of the Overton adhesive on cover, 2022 Philatelic Foundation certificate (Scott $2,250)