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Scientific American 1903-06-06

ScientificAmerican1903-06-06.jpg Scientific American 1903-04-18ThumbnailsScientific American 1903-06-20Scientific American 1903-04-18ThumbnailsScientific American 1903-06-20Scientific American 1903-04-18ThumbnailsScientific American 1903-06-20Scientific American 1903-04-18ThumbnailsScientific American 1903-06-20Scientific American 1903-04-18ThumbnailsScientific American 1903-06-20

Fiftieth anniversary of the opening of the Sault St. Marie Canal. View of locks.



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

Restoration by: magscanner