ScientificAmerican1877-09-01.jpg ThumbnailsScientific American 1892-05-28ThumbnailsScientific American 1892-05-28ThumbnailsScientific American 1892-05-28ThumbnailsScientific American 1892-05-28ThumbnailsScientific American 1892-05-28
Machinery for electroplating. Electrotyping apparatus.



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

Restoration by: magscanner