ScientificAmerican1893-04-29.jpg Scientific American 1893-03-25ThumbnailsScientific American 1894-07-21Scientific American 1893-03-25ThumbnailsScientific American 1894-07-21Scientific American 1893-03-25ThumbnailsScientific American 1894-07-21Scientific American 1893-03-25ThumbnailsScientific American 1894-07-21Scientific American 1893-03-25ThumbnailsScientific American 1894-07-21

TheWorld's Columbian Exposition -- the painting machine. Building construction.



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

Restoration by: magscanner