Date: | 1882 |
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Description: | A man shows off an incandescent lamp switchboard with bamboo filiament, lamp receptacle with wooden base, current and pressure indicators and controlling d... |
Date: | 1954 |
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Description: | Exterior view of a reproduction of the world's first hydroelectric central station. It is located near the site of the original, which began operation on S... |
Date: | 08 1963 |
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Description: | Elevated view of newspaper pulp wood stacked along the Fox River near the Combined Locks Paper Company. A crane is moving the logs, and workers are standin... |
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