Watchman's Control Clock, 1930-1959

Made:
1930-1959 in London

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IBM Watchman's control clock, model 3750 no.28152, 1930-1959. It was used to monitor the patrol of night-watchmen. By inserting a key into the key station clock, the time was recorded and safe from tampering.

Details

Category:
Time Measurement
Object Number:
1959-52
Materials:
leather, paper (fibre product) and steel (metal)
type:
time recorder
credit:
IBM United Kingdom Ltd.

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