ScientificAmerican1899-03-04.jpg ThumbnailsScientific American 1902-03-08ThumbnailsScientific American 1902-03-08ThumbnailsScientific American 1902-03-08ThumbnailsScientific American 1902-03-08ThumbnailsScientific American 1902-03-08
The building of a watch. Tempering furnace. Balance melting furnace. American Waltham Watch Company. Automatic plate-drilling machine. Tempering and bluing drum. Automatic plate-recessing machine. Automatic press for punching hand blanks. Automatic screw-making machine. Automatic plate-facing machine.



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

Restoration by: magscanner