Nothing shows the history of a doors use than glass doorknobs made prior to 1914! Prior to that year manufacturers used manganese in the chemical composition and exposure to the sun’s ultraviolet rays caused the glass to turn different shades of purple. Since people at that time frequently left their doors open we find sets where both knobs have color and one is darker than the other. I find it amusing that they changed the chemical composition to prohibit color changes (clear glass was preferred then) and now these knobs are prized by homeowners and collectors alike.
These knobs are slightly different in both shape and color. Both have nickel shafts to match the nickel plated steel rosettes. One shaft has more shine than the other and all can be polished if you choose to do so. The darker knob with the shiny shaft has some wear to the glass, a couple of flea bites and if you wiggle the handle it has some looseness where the glass meets the shaft. These are things that just happen to glass knobs over time and they still work just fine. The other knob is in very good condition and features a set screw that goes all the way into the spindle. A definite plus for glass knobs that can need adjustment to the normal set screws from time to time.
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here to order a new silver latch to go with these knobs.
Doorknobs: 2-1/4” diameter point to point
Rosettes: 2” diameter
