Collection of three assorted old architectural salvage Art Deco chrome door knobs. These doorknobs measure between just under 2" across and 2 1/4" across.
There are: one door knob that measures 2 1/4" across and 2 1/16" high with a square shank hole that is 0.3" square; one that measures 2" across and 2" high with a threaded mounting hold that measures about 0.33" and one with a bulls eye design that measures about 2" across and 2" high with a 0.3" threaded mounting hole.
These are in nice vintage condition with some tarnish in areas. The largest doorknob has some flaking to the plating on the backside, revealing the brass underneath and the smaller smooth knob has a stress crack to the mounting shank (it runs through the set screw hole).