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SINGLE NEEDLE TELEGRAPH  (WHEATSTONE NEEDLE), 1930's

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SINGLE NEEDLE TELEGRAPH (WHEATSTONE NEEDLE), 1930's

Information can be read if a needle is moved to the left or right. The single needle unit was a further development of Wheatstone and Cookes 5 needle system, which did not use Morse Code, and was replaced by the single needle system. This unit is clearly marked with the complete alphabet in Morse code on its face, and was probably used by the British Post Office.

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  • In the Genadendal Museum, South Africa, we saw a needle telegraph on display. According to the curator, it was used by the missionaries during the early 18th century. We were not allowed to take photographs.
    .......... Dr. Isaac Balie, Genadendal, SA, 1st of September 2012

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