3 3/16″ high x 2 1/4″ wide x 9/16″ deep excluding dust guard. Steel body. Steel shackle. Lever. Post key. Brass rivets. “GENERAL MISSOURI PACIFIC LINES” is stamped on the obverse of the body. “WINCHESTER” is stamped on the dust guard. The reverse of the lock is blank. This lock was made with a clevis and without a clevis.