pair of original antique american 19th century interior residential doorknob backplates designed and fabricated by the p. & f. corbin co., new britain, ct. the two matching backplates are comprised of stamped ornamental brass. surface wear and/or patina varies from one plate to the next. the elongated oval-shaped backplates contain single keyholes, intact thimbles and two screw holes for mounting purposes. measures 7 1/4 x 2 1/2 inches. priced for the pair.