1 3/16″ wide. Brass body. Steel shackle. Keyway: Paracentric. The reverse of the case is the same as the obverse. Thick dust guard. “FR600” is stamped on the obverse of the body. “THE YALE & TOWNE MFG. CO.” is stamped on the obverse of the shackle. “MADE IN U.S.A.” is stamped on the reverse of the shackle. Nickel Plated Finish.