ScientificAmerican1872-09-21.jpg Scientific American 1872-09-14ThumbnailsScientific American 1872-09-28Scientific American 1872-09-14ThumbnailsScientific American 1872-09-28Scientific American 1872-09-14ThumbnailsScientific American 1872-09-28Scientific American 1872-09-14ThumbnailsScientific American 1872-09-28Scientific American 1872-09-14ThumbnailsScientific American 1872-09-28

Wilder's patent punching and shearing machine.



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

Restoration by: magscanner