Small Windsor pattern door knob backplate with keyhole. This door plate is lost wax cast solid brass with an antique finish and measures 5 1/2" tall by 1 3/4" wide. The inside diameter of the door knob collar is 3/4" in diameter and the center to center measurement from the collar to the round part of the keyhole is a standard 2 1/4".
How do I know what door knobs will work with a particular rosette or door plate? The knob shank diameter should be a little less than the inside collar diameter on the rosette. Learn about hardware >