See my other items if interested. These are Refurbished and in Excellent Working Condition. This include cleaning, paint removal, light polishing, an oil rubbed finish, spindle and set screw replacement when necessary. These are very high quality antique glass door knob locksets. They were made by Dexter starting in the 1920's.The last picture shows the patent dates. Unlike modern reproductions, the glass has excellent clarity, and the silvering really sparkles. They are in excellent condition, with some minor wear. Refurbished and ready to install hassle free. Measurements (some measurements are shown in the pics). Faceplate: 2-1/4" tall x 1" wide. Backset: approximately 2-3/8 (see photos). If you're not familiar with a door backset is, please do an internet search for "door backset" and you should see a diagram of what I'm talking about. I also sell these in passage sets that don't have the locking rosette, and I sell the version that has 12 point glass knobs. See my other items if you're looking for those. It will be combined automatically at check out. Please SEE My Other Listings for Great Architectural Items. For more information, please review all the pictures and contact me with any questions. If something comes up, please contact me.