2 1/2″ wide. (actual: 2.506″ wide x 3.184″ high x 0.709″ deep). Brass body. Brass shackle. Post key. Extra heavy. There is a hole going through the case and the shackle to accept a wire seal. “W. BOHANNAN PATD APR.17.1860 BROOKLYN NY” is stamped on the obverse of the shackle. Spring dust guard. Clevis and chain. Catalog #: 7A, first appears in catalog of 1869.