Thomas Edison's machine shop. From a nice set of 93 photos at the Library of Congress.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...1_fullsize.jpg
Fullsize image: https://diqn32j8nouaz.cloudfront.net...2_fullsize.jpg
Fullsize image: https://diqn32j8nouaz.cloudfront.net...3_fullsize.jpg
Fullsize image: https://diqn32j8nouaz.cloudfront.net...4_fullsize.jpg
Fullsize image: https://diqn32j8nouaz.cloudfront.net...5_fullsize.jpg
More: https://www.loc.gov/pictures/search/...&sg%20=%20true
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