This IBM advertisement was published in the December
30, 1929, issue of Time magazine. It
features some of IBM’s time equipment of
the era, including a master clock for regulating
a network of secondary clocks, card and job recorders
for tracking time spent on tasks, and a time stamp
for logging the receipt or completion of documents.
For information about, and images of, IBM’s time equipment, visit our Clock Corner online exhibit. (VV9001)