These are excellent quality antique split-system cast bronze lock sets, c. 1929, complete with mortise lock, lock cylinder, plates, and knobs. Signed Russwin, these sets are from the James Robertson Hotel, one of the oldest hotels in Nashville, Tennessee. Each lock is tagged with its original room number. These door hardware sets are in excellent working condition with a wonderful patina. Each knob is 2″ in diameter; the large plate measures 7 1/8″ by 2 1/8″; the smaller plate is 6″ by 1 3/4″; and the mortise lock is 7 3/4″ long and 3 1/4″ deep overall, with a box 5 1/2″ long.