Holtzer-Cabot Co., Boston, Mass., "Holtzer Magneto Clock", 8 day, time and recorder function for 6 watchman's stations, twin-spring balance wheel movement for the time recorder and independent 8 day, twin-spring pendulum movement for the wall regulator,

Holtzer-Cabot Co., Boston, Mass., "Holtzer Magneto Clock", 8 day, time and recorder function for 6 watchman's stations, twin-spring balance wheel movement for the time recorder and independent 8 day, twin-spring pendulum movement for the wall regulator, all in an oak case with black glass and gold leaf lettering with the name of the clock and manufacturer. Based on the name on the door and contents of the clock, it presumably works similar to those made by The Eco Magneto Company. These time recorders used a system that avoided the problematic batteries of the time. A watchman, when checking in at one of the assigned stations, would manually crank a magneto. The electricity generated would close a solenoid within the remotely located time recorder, causing a pin corresponding to that station to punch a round paper record attached to the center arbor of the clock movement. The wall regulator has its own movement which is independent of the time recorder function and only drives hands on the visible dial. The case has an extremely dark original finish. The case has a few dings and one extra screw hole in the front. The pendulum rod has been repaired. The glass and lettering are in very good condition Both Seth Thomas movements tick, but neither was tested long term.