Overall: 3 3/4 x 8 5/8 x 3 in. ( 9.5 x 21.9 x 7.6 cm )
stamped: "A.B. DURAND" painted: on back in red: "2217"
Rectangular, bevel-edged brass plaque with letters stamped across, two prongs, and metal screw and bolt on back.
Due to ongoing research, information about this object is subject to change.