Eco Magneto Clock Co., Boston, Mass., circular dial time recorder, 8 day, time and recorder function for 9 watchman's stations, twin-spring Seth Thomas balance wheel movement in an oak case with black glass and gold leaf reading "Eco Magneto Clock Co. /

Eco Magneto Clock Co., Boston, Mass., circular dial time recorder, 8 day, time and recorder function for 9 watchman's stations, twin-spring Seth Thomas balance wheel movement in an oak case with black glass and gold leaf reading "Eco Magneto Clock Co. / Boston", metal tag above the glass reads "Time Recorder / Inspected by Underwriters' Laboratories / No. 11020". The Eco Magneto time recorders used an ingenious 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 case has an old, uneven finish. The door glass and lettering are excellent. The old wiring is present, but the insulation is cracked. An original instruction tag hangs inside the case. The UL tag is of note because the organization had only been in existence for a decade or so. The Seth Thomas movement ticks briskly, but was not tested long term.