Westclox Black Knight Series 66 style Windup, 2 key, alarm. Date 1932 - 193? Case Black painted metal with nickel plated bezel. Dial Paper with luminous (glow-in-the-dark) numbers. Patented U.S.A. No. 1563431, No 1709146, No. 1848520 Patents Pd'g. March 29 1927 Canada RD 1927 66H 66-H A2 Clock has alarm on/off switch along with alarm indicator on back (which is often missing). Reverse threaded winding knobs. If purchasing this clock, look for pry marks on front edge of case (behind bezel) from improper opening of the clock. This clock is dated December, 1932.