Antique Russell & Erwin Door Mortise Lockset Part Latch 1888

An antique door lock set mechanism by Russell & Erwin. Stamped 1888 inside.

Size aprx. 3-1/4" x 4-3/8" x 11-1/16"... weight 1 lb.

Unrestored condition with original patina, grime and paint loss... I believe working, but no key... no strike plate or other parts.