pair of original matching antique american ornamental cast iron interior residential doorknob backplates containing a uniform brushed metal finish treated with a clear coat lacquer. the passage door escutcheons contain volutes located nearly the screw holes. the backplates likely were fabricated around 1900. the exact hardware manufacturer is not known. original privacy lock handles intact. measure approximately 8 x 2 1/2 inches. priced for the pair.