ScientificAmerican1894-07-07.jpg Scientific American 1891-03-21ThumbnailsScientific American 1894-08-11Scientific American 1891-03-21ThumbnailsScientific American 1894-08-11Scientific American 1891-03-21ThumbnailsScientific American 1894-08-11Scientific American 1891-03-21ThumbnailsScientific American 1894-08-11Scientific American 1891-03-21ThumbnailsScientific American 1894-08-11
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