diameter: 1 5/8 in. ( 4.2 cm )
Inscription: obverse, on exergual line, at left: "W.H.KEY F."
Inscription: reverse, at lower center: "PAT NOV 3 1874 H&L"
White metal struck medal with obverse showing beaux-arts building with legend: "CENTENNIAL/ART GALLERY/IN MEMORIAL"; inscription below image: "PHILADELPHIA." 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.