Note: The Semaphore Telegraph

By C S Harris, published April 1912


The author references Chamber’s Encyclopaedia where an article states that the last London to Portsmouth message was sent on 31 December 1847. Also mentioned is the fact that a message could be sent and acknowledged in less than a minute. (See MM Volume 1, Issues 7, 9 and 11 and Volume 2, Issues 2 and 3)

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Filed under: Other (Nineteenth C) | Other (location)
Subjects include: Science & Exploration

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