Antique Mortise Lock with skeleton key: 3 1/4” deep by 3 5/8” height backset 2 1/2” faceplate is 5 1/4” long by 7/8” wide, backplates are 4 5/8” by 1 3/8” wide, 2 Clear black ceramic door Knobs 2” diameter . See pictures as part of descriptions