Windsor pattern door knob backplate with two keyholes. This door plate is lost wax cast solid brass with an antique finish and measures 8 1/2" tall by 2 1/4" 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 upper keyhole is a standard 2 1/4". The measurement to the lower keyhole is 3 5/8" which may accomodate some original mortise locks. The lower keyhole has a swinging cover plate.
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 >
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