Name: Photograph of the first automatic telephone exchange system (modern telephone), installed by the German Post Office in 1909. The original caption explained: 'Each subscriber is his own exchange, moving the clocklike face of the telephone until the right sequence of numbers has been called.' Date: 1909 - SuperStock
Brand: Mary Evans Picture Library
SKU: 4220-20400293
Availability: InStock

Photograph of the first automatic telephone exchange system (modern telephone), installed by the German Post Office in 1909. The original caption explained: 'Each subscriber is his own exchange, moving the clocklike face of the telephone until the right sequence of numbers has been called.' Date: 1909

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