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Scientific American 1891-01-31

ScientificAmerican1891-01-31.jpg Rubberset Toothbrushes -1912AThumbnailsScientific American 1894-02-17Rubberset Toothbrushes -1912AThumbnailsScientific American 1894-02-17Rubberset Toothbrushes -1912AThumbnailsScientific American 1894-02-17Rubberset Toothbrushes -1912AThumbnailsScientific American 1894-02-17Rubberset Toothbrushes -1912AThumbnailsScientific American 1894-02-17

Progress of work on the nicaragua Canal. General view of Greytown. Breakwater with pile driver in positon for work. Construction of railroad across swamp back of Greytown. Dredge City of Paris throwing up embankment in harbor of Greytown.



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

Restoration by: magscanner