ScientificAmerican1902-03-08.jpg Scientific American 1899-03-04ThumbnailsScientific American 1899-03-04ThumbnailsScientific American 1899-03-04ThumbnailsScientific American 1899-03-04ThumbnailsScientific American 1899-03-04Thumbnails
Modern blast furnace, showing automatic hoisting and charging equipment.



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

Restoration by: magscanner