Asymmetrical 1890s wrought brass or bronze De Bercy door knob by Russell & Erwin.  Wonderfully executed design.  2 1/4" diameter.  2 1/4" deep from face to back of shank.  Offered as found and uncleaned.  Good patina with paint slop on face.  See images.  Additional pictures and measurements available upon request.  Please ask all questions prior to bidding. All sales final.  No returns accepted at this time.  Please check my other listings for additional unique offerings.  I will be uploaded a lot of antique hardware over the next couple weeks.