Basic white porcelain knob with center mount machine screw. These knobs had a variety of uses from restrooms to pie safes.
Extra Large White Porcelain Cabinet Knob - 1 7/16 Diameter
10 Easy Pieces: White Porcelain Doorknobs - Remodelista
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White Porcelain Door Knobs in Antique-By-Hand - 1 Pair
Soft White Porcelain Cabinet Knobs Pulls Gold Accents 1.75 Inch
Antique Porcelain Knobs
White porcelain door knobs – Vintage House Part
White Porcelain Knobs, Vintage Cabinet Hardware, Set of 5 Drawer
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Porcelain Collection - 1 1/4 White Porcelain Knob with Chrome Tip
White Mushroom Porcelain Knob with Stepped Base
White Porcelain Ceramic Door Knobs With Cast Iron Ferrule
Vintage Bathroom White Porcelain Brass Knobs Handles Parts or
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White Finish Porcelain Cabinet Door/Drawer Knob