Synchronous mains electric clock of the non self-starting type, c 1936.

Richardson, Claire

Synchronous mains electric clock of the non self-starting type, c 1936.
3 1 c m
40cm
actual image size: 32cm x 23cm

Description

Clock by Ferranti with 24 hour alarm and illuminated dial. clocks such as this analogue clock used synchronous electric motors and depended on the frequency of mains electricity, via the new national grid, for their timekeeping.

Image Details

Artist
 
Image Ref.
 
10433043

© Science Museum / Science & Society Picture Library

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