On first glance, this is a commonly found 1940's glass doorknob made by Schlage. On closer inspection, you can see instead of a spindle or integrated door hardware, there's only a threaded screw hole! Highly unusual. We suspect these knobs were made for stationary usage as dummy doorknobs or even possibly matching furniture. Given the large scale of the knobs, these would work great for a large drawer or even curtain tie backs. Sold individually.
Condition: Good antique condition. Surface rust and wear from regular use. Small chips in glass.
Overall width: 2 1/8 inches
Overall length: 2 inches
Length of base thing: 1 inch
Width of small opening on back: 1/8 inch