diameter: 1 5/8 in. ( 4.2 cm )
Inscription: obverse, at tight, on exergual line: "W.H.KEY. F."
Inscription: reverse, at lower center of field: "PAT NOV 3 1874 H&L"
White metal struck medal with obverse showing exhibition pavilion buildings with legend above: "CENTENNIAL EXPOSITION"; inscription in exergue: "PHILADELPHIA/1876 [within shield with thirteen stars]." Reverse is inscribed: "1776/ILLUSTRATING/THE GROWTH AND PROSPERITY/OF A FREE PEOPLE/IN A HUNDRED YEARS/1876."
Due to ongoing research, information about this object is subject to change.