MONROE, James (1758-1831) and ADAMS, John Quincy (1767-1848). Signed Letters Patent grant for Ephraim Gilbert (“James Monroe” signed as President, and “John Quincy Adams” signed as Secretary of State). Washington, D.C.: July 22, 1823. One page, 4to (360 x 285 mm). On printed Letters Patent parchment, with Presidential Seal affixed near the left corner and with green ribbon along left margin and beneath seal, (some minor toning to paper, two vertical and one horizontal crease). THIS DOCUMENT GRANTS A PATENT TO EPHRIAM GILBERT A PATENT “IN THE MODE V MACHINERY FOR LOADING THE BORING IN THE BLASTING OF ROCKS”. It is countersigned by Attorney General William Wirt (1772-1834). Beautifully matted, framed and glazed with an engraved plaque. Frame size: 758 x 546 mm. Not examined out of frame. [Together with:] GRANT, Ephraim. Manuscript application for patent, signed by Grant on verso. [N.p., ca. 1820s]. One leaf, 4to (376 x 300 mm). Two-page patent application, written on recto and verso by Grant. On plain white paper (paper toned, soiled, with two vertical creases, and one horizontal crease, and creases at corners, verso more soiled than recto). “This machinery is of three different kinds the first is formed with a rod of iron of couple the length of the height of the space in the bore which contains the load of gun-powder, at the upper end of this rod is fixed a circular plate of sheet iron of the same diameter as the bore in the rock…” This leaf is sealed in archival plastic and is housed in a custom-made paper pocket on the rear of the framed item (a few tears to pocket).