ScientificAmerican1872-09-21.jpg ThumbnailsScientific American 1872-11-23ThumbnailsScientific American 1872-11-23ThumbnailsScientific American 1872-11-23ThumbnailsScientific American 1872-11-23ThumbnailsScientific American 1872-11-23
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