Cast Bronze Door Plate From Fort Dearborn Hotel doorknob but I think most cylinder

but I think most cylinder locks would still fit with little or no gap

then in 1868 it became Mallory

The doorknob shaft can range from 1 3/4″-2 3/4″ (measured without plates)

The base of the neck measures 3/4"diam

2 face plates and mortise lock box in Reading "Windsor" pattern

Cast Bronze Door Plate From Fort Dearborn Hotel doorknob but I think most cylinderCast bronze door plate. Slightly oversized cast bronze door plate from Fort Dearborn Hotel in Chicago. These were custom made for the hotel and feature an image of Fort Dearborn at the top. Cir. 1914. Possibly made by Sargent & Co? The plate has a slightly unusual setup with the keyhole above the doorknob hole. Above the keyhole is an interesting "button" which seems to be activated from the back. It takes a small 3 8" square shaft and both spins and