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Scientific American 1891-09-26

ScientificAmerican1891-09-26.jpg Scientific American 1891-04-11ThumbnailsScientific American 1892-02-20Scientific American 1891-04-11ThumbnailsScientific American 1892-02-20Scientific American 1891-04-11ThumbnailsScientific American 1892-02-20Scientific American 1891-04-11ThumbnailsScientific American 1892-02-20Scientific American 1891-04-11ThumbnailsScientific American 1892-02-20

The great railway tunnel under the St. Clair River, between the United States and Canada. Masonry at entrance. Where beach shields come together.



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

Restoration by: magscanner