Made by Frank Allart in England, this center door knob was customized for the customer.
Knob measures 3-7/8" diameter x 3-1/2" projection.
Rosette measures 3-15/16" diameter.
Available with 5 inch or 6 inch backsets.
Shown below installed with a 5 inch backset.
Call 215-247-0945 for more information.