American forger (1887-1950?) who forged letters from American luminaries. Joseph Cosey forgery of a clock engraving signed twice by Benjamin Franklin, one page, 7 x 8, dated 1772. Engraved plate from James Ferguson's Select Mechanical Exercises, showing a clock invented by Franklin and a schematic drawing of three pulleys, with notations reading: "The pulley is drawn down to the bottom. Pinion no. 7," and "A clock showing the hours, minutes, and seconds and having three wheels and two pinions in the whole movement. Invented by B. Franklin, Philad'a 1772," with a second signature in the upper portion, "B. Franklin." Double-matted and framed with an engraving of Franklin to an overall size of 14.25 x 21.25. In very good condition, with light soiling and staining, and tears along the left edge.
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