1White Porcelain Door Knob Set PKS-801October 22, 2020/in Doorknob Sets, Porcelain & Bennington Door Knobs/by adminVintage pair of white glazed pottery door knobs in excellent condition with iron shanks and rosettes , comes with 1/4″ spindle and iron mortise lock. Back set is 2-1/2″. ONE SET AVAILABLE