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Scientific American 1893-01-21

ScientificAmerican1893-01-21.jpg Popular Mechanics 1908-12ThumbnailsScientific American 1893-02-25Popular Mechanics 1908-12ThumbnailsScientific American 1893-02-25Popular Mechanics 1908-12ThumbnailsScientific American 1893-02-25Popular Mechanics 1908-12ThumbnailsScientific American 1893-02-25Popular Mechanics 1908-12ThumbnailsScientific American 1893-02-25

Adjustable undershot water wheel, for varying water level, of the Potsdam Red Sandstone Co.



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

Restoration by: magscanner