ScientificAmerican1901-10-12.jpg Scientific American 1899-03-04ThumbnailsScientific American 1902-03-08Scientific American 1899-03-04ThumbnailsScientific American 1902-03-08Scientific American 1899-03-04ThumbnailsScientific American 1902-03-08Scientific American 1899-03-04ThumbnailsScientific American 1902-03-08Scientific American 1899-03-04ThumbnailsScientific American 1902-03-08
The manufacture of high-grade cast steel. Gas plant. Flasks ready for casting. Finishing mould for locomotive driving wheel. Pattern for ram of battleship. Cleaning castings by sand-blast. Pouring molten metal into ladle.



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

Restoration by: magscanner