Telephone switchboard, 19th century

Telephone switchboard, 19th century

C024/6469 Rights Managed

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Credit: SCIENCE PHOTO LIBRARY

Caption: Telephone switchboard. Historical illustration of a rear view of the wiring (bottom) and indicators (top) of a switchboard as used at a telephone exchange. When the indicators are triggered, this shows the switches that need connecting with a wire. These wires are used to re-route telephone calls to their destinations. The telephone was developed in the 1870s, with several inventors pioneering the technology. For the front of this switchboard, see image C024/6468. Artwork from 'Electricite' (1911) by Max de Nansouty, part of the 'Les merveilles de la science' series of 1867-1891 by Louis Figuier.

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