Baldwin 6301.R Entry / Apartment Function KnobxKnob 2.5" Backset Mortise LockThe Baldwin 6301. R Entry Apartment Function KnobxKnob 2. 5" Backset Mortise Lock is Mortise Lock, from the Estate collection, with Brass construction. Baldwin 6301. R Entry Apartment Function KnobxKnob 2. 5" Backset Mortise Lock Brand: Baldwin Product Type: Mortise Lock Parts Finish Options: select finish options Model: 6301. R Collection: Estate Series: Mortise Lock Function: Mortise Lock Material: Brass Backset: 2 1 2" Handing: Right Handed