This old piece dates from 1880 to perhaps 1910. It is a sash lift for raising a window. The lift was placed at the bottom of the window to allow fingers to lift up the sash. It has a Victorian pattern and is stamped brass (or bronze).
The lift measures 3 inches across and 1 1/2 inches vertically. The finger depth is 7/16 inch. The lift is fastened with two screws on the inside of the finger indention.
Occasionally these finger pulls were also used on parlor sliding doors, placed vertically.