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First World War
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First World War

Laying down the meditereanean electric telegraph cable at Spezzia.
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Laying down the meditereanean electric telegraph c...

The Adder And The Monarch Steamers Laying Down The England And Holland Electric Telegraph.
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The Adder And The Monarch Steamers Laying Down The...

Plate lightning rod.
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Plate lightning rod.

Electromagnetic system and the connection of the telegraph Hughes.
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Electromagnetic system and the connection of the t...

Nineteenth Century Inventions
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Nineteenth Century Inventions

Spain, King Alfonso XII
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Spain, King Alfonso XII

C.P. Steinmetz and G. Marconi nown
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C.P. Steinmetz and G. Marconi nown