1 3/4″ wide. (actual: 1.724″ wide x 2.224″ high x 0.524″ deep). Bronze body. Bronze shackle. Flat key. “W.BOHANNAN BROOKLYN, N.Y. PAT. JUNE 25.79 073” is stamped on the obverse of the shackle. Catalog #: 073, first appears in catalog of 1880.Patent # 205171.