matching set of original c. 1900's antique american ornamental cast iron "ontario" pattern doorknob backplates designed and fabricated by the barrows hardware company, lockport, il. the decorative backplates contain traces of copper and/or brass plating. each escutcheon contains four screw holes, single keyholes and fluted thimbles or collars. measure approximately 8 1/2 x 2 1/4 inches. priced for the pair.