Overall: 9 x 17 x 2 1/2 in. ( 22.9 x 43.2 x 6.4 cm )
maker's label: inside top of crown: "Bent & Bush / WASHINGTON COR COURT ST. . . / Boston" stamped: on back of button: "SCOVILL. / MFG. CO."
Black beaver (silk) chapeau with folding crown and rigid corners; embroidered black binding on edges of cock and fan; triple loop of gold bullion (with twisted loop at center) over black silk rosette; gilded metal button (now detached) embossed with an eagle clutching an anchor inside a circle of stars; gold bullion fringe at each corner.
According to Bazelon and McGuinn ("A Directory of American Military Goods, Dealers & Makers, 1785-1885," 1987), the firm of Bent & Bush was located in Boston at 273-275 Washington St., at the corner of Court, from 1849 to 1874.
Due to ongoing research, information about this object is subject to change.