ScientificAmerican1903-09-26.jpg Film Fun 1927-10ThumbnailsScientific American 1927-10Film Fun 1927-10ThumbnailsScientific American 1927-10Film Fun 1927-10ThumbnailsScientific American 1927-10Film Fun 1927-10ThumbnailsScientific American 1927-10Film Fun 1927-10ThumbnailsScientific American 1927-10
The Bessemer copper process. Casting the final product into molds. Details of converter air tube and chest. Water-jacket furnace. First blow, partial removal of iron and sulphur.



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

Restoration by: magscanner