ScientificAmerican1891-10-03.jpg ThumbnailsScientific American 1897-11-27ThumbnailsScientific American 1897-11-27ThumbnailsScientific American 1897-11-27ThumbnailsScientific American 1897-11-27ThumbnailsScientific American 1897-11-27
A mammoth grapple dredge at work in the East River, near Tenth Street, New York City.



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

Restoration by: magscanner