hard to find original 19th century antique american salvaged chicago oversized round hardwood doorknobs with matching rosettes

group of matching late 19th century interior residential oversized ball-shaped solid oak wood doorknobs with mathcing escutcheons or rosettes. the matching doorknob sets were salvaged from a chicago residence built in the 1890's. the steel spindles are included. the knobs are affixed to brass shanks with threaded holes for set screws. the knobsets are priced as a lot.