History of the Atlantic Cable & Undersea Communications
from the first submarine cable of 1850 to the worldwide fiber optic network

Silvertown Cable Test Key

The diagram is from Charles Bright's Submarine Telegraphs, published in 1898.   “Fig. 54 represents a good substantial and reliable species of combined key and switch as designed by Mr W.A. Price for the Silvertown Company”.

Research Material Needed

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You can help - if you have cable material, old or new, please contact me. Cable samples, instruments, documents, brochures, souvenir books, photographs, family stories, all are valuable to researchers and historians.

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