2 1/2″ wide. (actual: 2.519″ wide x 3.576″ high x .691″ deep). Bronze body. Bronze shackle. Post key. Spring dust guard. Clevis and chain. For Railroad cars and switches. “WILSON BOHANNAN MARION OHIO U.S.A. 115” is stamped on the obverse of the shackle. Catalog #: 115, first appears in catalog of 1886.