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Watch as I "unbag" an International Time Recording Co. time clock from 1911. The clock works well, using a pendulum and two mainsprings for power. This was likely a factory clock for use by workers at the beginnings and ends of their shifts. "Punch the clock", "punch in and punch out" are terms that got their origin from machines like this one - watch the video to see why. This time clock is able to record the date, and the time down to 1/10th of an hour. International Time Recording Co. was bought and then merged with another company to form International Business Machines, and its logo was adapted into the IBM world logo.