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Thomas Edison's generator for electric light at his home at Menlo Park, New Jersey, USA, 1879. Artist: Unknown
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Thomas Edison's generator for electric light at hi...

Thomas Edison's improved form of JW Trowbridge's electric dynamometer, 1879. Artist: Unknown
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Thomas Edison's improved form of JW Trowbridge's e...

Presentation of the Crimean Medal by Queen Victoria to Colonel Sir Thomas Trowbridge, May 18th 1855. Artist: Thomas Picken
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Presentation of the Crimean Medal by Queen Victori...