Partly-printed vellum DS, signed “James Monroe” as president and “John Quincy Adams” as secretary of state, one page, 11 x 15, November 18, 1818. A patent issued to Abraham Taylor who “has invented a new and useful improvement being a mode of propelling Boats &c, called the Columbian Principle which improvement he states has not been known or used before his application; hath made oath and that the same hath not to the best of his knowledge or belief been previously used or known in this or any foreign country, that he does verily believe that he is the true inventor or discoverer of the said improvement.” The attached three double-sided pages contain a detailed description of the invention written and signed by Taylor. In very good condition, with Adams’s signature is fairly light, but mostly legible, other handwritten portions of document and Taylor’s description also light but legible, and some light soiling. The crisp white seal is tattered at the edges and toned and the document retains its original green ribbon which has become partially separated. A highly desirable format boasting two presidential signatures. Pre-certified PSA/DNA.
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