Wrought Steel Knob by Knob Mortise Entry Set, Standard mortise door prep, ANSI A115.1. Solid forged brass, available in 3 finishes. Schlage C keyway. Choose any knob or lever for inside handle. Complete kit to outfit one door. Please specify backset, available in either 2-1/2" or 2-3/4" backsets. Handing Required if lever is used on inside. Also available in Dummy configuration, for double door sets.Please view metal finish options and interior knob options below.