S.N.” – “ELECTRIC”. 1 3/16″ wide. Steel body. Brass shackle. Keyway: Flat with offset. “U.S.N.” is embossed on the reverse of the body. “ELECTRIC” is stamped on the reverse of the case at 12 o’clock. “MADE IN U.S.A.” is stamped on the obverse of the shackle. “MADE FOR” is stamped on the reverse of the shackle.