ScientificAmerican1894-07-07.jpg Scientific American 1893-06-10ThumbnailsScientific American 1894-12-29Scientific American 1893-06-10ThumbnailsScientific American 1894-12-29Scientific American 1893-06-10ThumbnailsScientific American 1894-12-29Scientific American 1893-06-10ThumbnailsScientific American 1894-12-29Scientific American 1893-06-10ThumbnailsScientific American 1894-12-29
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