Engineers and inventors who organized the Pratt & Whitney company to manufacture machine tools, tools for the makers of sewing machines, and gun making machinery for use by the Union Army during the American Civil War. Two stock certificates: partly-printed DS, signed “F. A. Pratt,” one page, 11.25 x 7, no date but circa 1890s. Unissued and canceled stock certificate for the Pratt & Whitney Company, signed by Pratt as president of the company; and a partly-printed DS, signed “Amos C. Whitney,” one page, 11 x 6.75, May 31, 1900. Stock certificate issued to William Rockefeller for 45 shares of stock of the Pratt & Whitney Company; the receipt and a related letter are affixed to the reverse. Signed at the conclusion by Whitney as president of the company. In overall very good condition, with expected document wear and cancellation holes significantly affecting the signatures. RR Auction COA.
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