“U.S.N. ELECTRIC” – “EAGLE”. 1 3/16″ wide x 5/16″ shackle diameter x 5/8″ shackl
“U.S.N. ELECTRIC” – “EAGLE”. 1 3/16″ wide x 5/16″ shackle diameter x 5/8″ shackle clearance. Brass body. Brass shackle. Keyway: Paracentric. 4 Pin tumbler push key. “PATENTED FEB 7 1911” is stamped on the base of the body.