narrow backset mortise lock
Liz's Antique HardwareCorbin satin nickel over brass mortise lock
Measurements:
Mortise Lock Face Plate: 5-1/4" H x 1-1/8" W x 1/4" D
Cylinder Lock Back Set from behind Face Plate: 3-1/4" H x 1-7/8" W x 3/4" D
Strike Plate 3-1/8" H x 1-1/8" W
Includes 4 collars, 3 keys, 4 screws, 2 cylinder locks and the mortise and strike plate.