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Scientific American 1920-09-04

ScientificAmerican1920-09-04.jpg Scientific American 1913-05-31ThumbnailsSt. Nicholas 1926-12Scientific American 1913-05-31ThumbnailsSt. Nicholas 1926-12Scientific American 1913-05-31ThumbnailsSt. Nicholas 1926-12Scientific American 1913-05-31ThumbnailsSt. Nicholas 1926-12

Working with bare hands on live lines by means of the safety stage.