late 19th or early 20th century original antique american ornamental cast bronze brass metal exterior salvaged chicago two-flat building entrance size doorknob and matching backplate designed and fabricated by the reading hardware co., reading, pa. the single banded rim brass doorknob features a centrally located rosette surrounded by fleur-de-lis. two matching doorknobs and backplates were salvaged from a chicago two-flat building prior to demolition. priced for the knob and matching backplate.