This cast brass (or bronze) door knob rosette has a typical Eastlake pattern. It is the “Oriental” design by Branford Lock Works. The fan, sunburst, and bamboo shoots are depicted in the design.
The rosette measures 2 inches round. The opening for the door knob neck is 5/8 inch across.
This piece dates from 1870 to the 1890s.
Screws will be included.