1Hopkins & Dickinson Doorknob HD-774June 14, 2022/in Hopkins & Dickinson Hardware, Interior Doorknobs Brass & Iron, New Arrivals/by adminRare interior doorknob and rosette by Hopkins & Dickinson in very nice condition. Measures 2-1/4″ in diameter. Knob takes a 1/4″ spindle, rosette measures 1-7/8″ in diameter.