An International Time Clock by International Business Machine Corporation with original crank and pendulum; image credit on full record.
The interior works of the International Business Machine Corporation Time Clock; image credit on full record.
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Time Recorder Clock; International Business Machine Corp, Model 6400-2, Oak, Wheel Punch, 37 inch.
An International Time Clock by International Business Machine Corporation, Model 6400-2 [punch type time recorder], oak case in old finish with origin... [more detail available via subscription]
