Double spring steel bear trap (no. 5, S. Newhouse) made at the Oneida Community in Oneida, New York during the mid-nineteenth century. The trap features a chain with a swivel snap at one end and a ring at the other; the spikes on its jaws point inward. Traps of this kind were commonly used for black bear trapping and were set with clamps.
Featured on the Minnesota Historical Society's Collections Up Close blog on January 10, 2013 (the link will not be viable until that date).