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Scientific American 1882-05-13

ScientificAmerican1882-05-13.jpg Scientific American 1882-02-04ThumbnailsScientific American 1891-04-11Scientific American 1882-02-04ThumbnailsScientific American 1891-04-11Scientific American 1882-02-04ThumbnailsScientific American 1891-04-11Scientific American 1882-02-04ThumbnailsScientific American 1891-04-11Scientific American 1882-02-04ThumbnailsScientific American 1891-04-11

Chronograph for engineering purposes. Kinzua Viaduct -- the higheest railway bridge in the world.



Artist: John Toomey

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

Restoration by: magscanner