This solid brass doorknob set can be installed on new or antique doors and will work with contemporary tubular-latches or antique mortise-locks.  This set is compatible with both contemporary 2-1/8" or antique 3/4" pre-drilled holes.

Dimensions (knob): 2-1/4"w
Dimensions (plate): 2-1/2"w x 8"h
Material: brass (unlacquered)
Other: priced as a set for 1 door
Other: escutcheon plate available with or without keyhole

Additional dummy, passage, and privacy hardware components also available.  

Custom finishes available, including live/organic finishes which will develop a natural patina over time (priced upon request).