1 5/8″ wide. Steel body. Brass shackle. Keyway: Flat. “STAMFORD. CONN. U.S.A.” is embossed on the obverse of the shackle. “YALE & TOWNE MFG. CO.” is embossed on the reverse of the shackle. “Correos” is Spanish for “Mail”. “R•M•” represents “Republic of Mexico”.