The image attached has been uploaded to
Flickr by The British Library. It is a drawing titled "The Edison multipolar Dynamo" taken from page 198 of 'The United States of America. A study of the American Commonwealth, its natural resources, people, industries, manufactures, commerce, and its work in literature, science, education and self-government. Dynamos were the first electrical generators to generate and deliver power for industrial use.
What an illustrative drawing.
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