2 1/4" Cast Brass Rosette With 21/32" Collar in Polished Nickel

A simple, round rosette in polished nickel is an elegant backdrop to many styles of door knobs. This low-profile design, which steps down slightly around the outside to create a subtle border, is re-cast from a circa 1920 antique original.

Outside diameter: 2 1/4". Inside collar diameter: 21/32". Due to the screw hole positioning, this rosette does not work on modern 2 1/8" pre-bored doors.

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.