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Scientific American 1894-02-24

ScientificAmerican1894-02-24.jpg Scientific American 1894-02-03ThumbnailsScientific American 1903-12-26Scientific American 1894-02-03ThumbnailsScientific American 1903-12-26Scientific American 1894-02-03ThumbnailsScientific American 1903-12-26Scientific American 1894-02-03ThumbnailsScientific American 1903-12-26Scientific American 1894-02-03ThumbnailsScientific American 1903-12-26

Details of magneto for telephone calling. Design breakdown by part.



Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner