ScientificAmerican1902-03-08.jpg Scientific American 1901-08-10ThumbnailsScientific American 1901-08-10ThumbnailsScientific American 1901-08-10ThumbnailsScientific American 1901-08-10ThumbnailsScientific American 1901-08-10Thumbnails
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