Reproduction Polished Unlacquered Brass Interior Door Mortise Lock - with thumb turn

Interior Door Mortise Lock for Interior doors

2-1/2" backset, spacing 2-1/4"

Case 3-1/8" x 3-5/8" x 9/16"

Face plate 15/16" x 5-1/4" x 1/8" thick

Star-shaped doorknob hub accepts two spindle widths:

9/32" (7mm) and 5/16" (8mm)

Wrought steel case with steel inner parts 

Black Japan-ed case

Solid brass face plate, latch and bolt

Reversible for right- and left-handed doors