antique brass door knob, Eastlake vintage door hardware heavy w/ original patina

Authentic antique brass door knob... heavy with original patina. A nice architectural art element in the Eastlake, Art Nouveau, or Aesthetic traditions.

This doorknob measures about 2 1/4" across and has an about 5/16" threaded spindle socket. (I measured it as about 0.35"). It has a dent on the side of the knob as shown.