1Corbin Hardware Door Knob Corbin-357December 9, 2020/in Corbin Hardware, Interior Doorknobs Brass & Iron/by adminShown in the 1871 Corbin Hardware Catalog this cast bronze door knob with rosette in nice condition , knob measures 2-3/8″ in diameter and the rosette 2-3/16″ in diameter and knob takes a 1/4″ spindle.