Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 144,393 pages of information and 230,177 images on early companies, their products and the people who designed and built them.

Western Union Telegraph Co

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Duplex Morse key.
Duplex morse key name plate saying Silvertown Telegraph Works, London.
Sticker on underside of above key.

Western Union House, 22 Great Winchester Street, London, EC2.

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