Empire style. Part of the N-20520 group. Bronze oval knob with an attached Yale cylinder lock back plate. Made of bronze in antique finish. Set includes one knob and one plate. The dimensions are Knob 3 in. H x 2 in. W x 2.25 in. D, plate 9.25 in. H x 2.5 in. W x 0.25 in. D, collar 0.75 in. diameter, drop 3 in., lock hole 1.125 in. diameter.