3" Wrought Brass Rosette in Antique Brass

When you have a pre-bored door, but want to use vintage style knobs, this 3-inch diameter rosette may be just the thing. Made of solid, wrought brass with an Antique Brass finish.

Outside diameter: 3". Inside collar diameter: 3/4".

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.