ScientificAmerican1894-07-07.jpg Scientific American 1894-06-30ThumbnailsScientific American 1894-07-14Scientific American 1894-06-30ThumbnailsScientific American 1894-07-14Scientific American 1894-06-30ThumbnailsScientific American 1894-07-14Scientific American 1894-06-30ThumbnailsScientific American 1894-07-14Scientific American 1894-06-30ThumbnailsScientific American 1894-07-14

Lengthening of the gunboats Machias and Castine. Extensions built at center.



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

Restoration by: magscanner