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Scientific American 1897-01-02

ScientificAmerican1897-01-02.jpg Scientific American 1894-05-19ThumbnailsScientific American 1894-05-19ThumbnailsScientific American 1894-05-19ThumbnailsScientific American 1894-05-19ThumbnailsScientific American 1894-05-19Thumbnails

The signaling system of the Broadway and Seventh Avenue Railroad, New York City. Registering instrument and emergency wagon. Indicators and alarms in engine room of power house.



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

Restoration by: magscanner