Pre-owned. Condition is used and wear is consistent with use and age. There are some nicks and scratches and discolorations on the knob and backplate. The single post knob has a 1.5" diameter and the backplate is 5.5" long and has a 1.5" width at the widest point. The overall projection is approximately 7/8".  The original screw is included in the package. The back side of the plate is embossed NATIONAL LOCK and style number H6-3706-001. The back side of the knob is embossed NATIONAL LOCK and style number F0-3700-001. The knob and plate have raised gold color filigree within white enamel. They were lightly cleaned in dish soap and water and dried only to remove any loose dust and dirt. They date back to the early 1970s. Please see the photos for a visual description.