Original glass doorknob set with fixed base. Some history to glass knobs: the technology for pressing melted or molten glass into molds was developed in 1826. Glass knobs were made then, but they did not become popular until after 1917 when the United States joined World War I.
The dimensions are Big knob 3 in. L x 2.875 in. diameter, small knob 2.25 in. L x 2.125 in. diameter.
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