The attachment is based on US Patent No. 278,704 June 5, 1883. The rear of only one of the knobs has a grove to hold adjustment washers. The rose for the exterior knob covers the screw. The interior rose has a hole to access the screw, see patent page below.
About this record
“Colonial ” (catalogue E-15212) is an antique doorknob recorded in the Spirals and Swirls category (Category E) of the Antique Doorknob Collectors of America archive. It was made by Hall, c. 1883. The pattern belongs to the Colonial school of ornament.
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Moving off a platform we had outgrown
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