This doorknob is made of a blown glass shell coated internally with liquid mercury, giving it an unusually vivid silver color which never tarnishes. This knob is very near the end of mercury glass doorknobs of this style dating around 1915, showing off a twist-on base much more commonly seen in older homes today.
Condition: Great vintage condition. Nickel plating on the base showing wear with brass peaking through.
Dimensions: 2" Diameter. 2 1/4" Projection