Patterned after the U.S. Model 1863 and manufactured under contract for the State of Massachusetts with a"1864" dated lock.

Good with silver-gray patina, minor oxidation, filled holes and repairs, and general mild wear. Mechanically fine.

"1863" dated lock.

Fair as cleaned and bored out smooth with silver-gray patina, moderate pitting, refinished stock with chips, and general moderate wear. Mechanically fine.