1Iron Door Knob Yale & Towne Y&T-055February 7, 2015/in Interior Doorknobs Brass & Iron, Yale & Towne/by adminNice cast iron door knob with a floral design by Yale & Towne in the Pasco pattern , measures 2-1/8″ in diameter. Knob would be pinned to a slotted 1/4″ spindle. ONE AVAILABLE