set of original 19th century interior residential ornamental cast iron louvered registers or grates with black enameled finish

two late 19th century original and largely intact ornamental cast iron "indian lattice" pattern floor or wall registers designed and fabricated by the tuttle & bailey co, new york city, ny. the cast iron grates contain a mostly uniform black enameled finish. the grilles were salvaged from a chicago commercial building built in the late 1890's. the louvers are intact. the perforated grilles are free from cracks or breaks. priced for set.