SLIMLINE mortise lock set, 35mm Backset - Stainless Steel Face 
Entrance Mortise Lock for wood and steel doors

Backset: 1-3/8\" (35mm)
Handle PZ: 3-11/32 (85mm)
Faceplate Width: 15/16 inch (24 mm) 
Faceplate Length: 11-7/8 inch (300 mm)
Faceplate Finish: Satin Stainless, US32D
Deadbolt: 1-1/4 (32m) projection, drop down 
Made in Italy

Related Slimline Mortise Locks with 3 available backsets
301100 - 1 inch (25mm)
301101 - 1-3/16 inch ( 30mm) 
301103 - 1-3/8\" (35mm)