Telegraphy, By W.h. Preece And J. Sivewright. 3rd [sic] Ed (Hardcover)

This technical book provides a comprehensive overview of the science and technology of telegraphy, as it was understood at the end of the 19th century. The authors, WH Preece and J Sivewright, were pioneering telegraph engineers who played a key role in the development of this important communications technology.

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