Antique Russwin Mortise Lock with long face and Key. Hard to find type. Internals have been checked and cleaned and are ready for use. Face is 7 3/4" x 1" x 7/32" thick. Black box is 3 5/8" tall x 3 1/8" wide x 9/16" thick. Backset is 2 1/2". From center of spindle hole to center of round part of keyhole it is 2 3/16".