ScientificAmerican1921-05-21.jpg Scientific American 1921-05-14ThumbnailsScientific American 1921-05-28Scientific American 1921-05-14ThumbnailsScientific American 1921-05-28Scientific American 1921-05-14ThumbnailsScientific American 1921-05-28Scientific American 1921-05-14ThumbnailsScientific American 1921-05-28

Getting a coal car up an incline with the electric "billy goat". Also, "Putting waste metals to work" and "The giant of the skies".

Artist: Howard V. Brown

Source: Steve Kirch

Restoration by: Michael Ward