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Diagram of electro-chemical telegraph

  • 1853

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Public Domain

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Text and woodcut diagram from page 35 of the 1853 volume The Electro Magnetic Telegraph detailing the primary components of an electro-chemical telegraph, including the indicator (a) and communicator portions (b), voltaic battery (c), roller (e), and finger-board (h).

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  • 23 cm
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Rights Public Domain Mark 1.0
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  • Courtesy of Science History Institute

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  • Page 35

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Cite as

Turnbull, Laurence. “Diagram of Electro-Chemical Telegraph.” The Electro Magnetic Telegraph: with an Historical Account of Its Rise, Progress, and Present Condition . Philadelphia, Pennsylvania, 1853. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/oysvcxo.

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