ScientificAmerican1926-07.jpg Scientific American 1925-10ThumbnailsScientific American 1926-08Scientific American 1925-10ThumbnailsScientific American 1926-08Scientific American 1925-10ThumbnailsScientific American 1926-08Scientific American 1925-10ThumbnailsScientific American 1926-08

Modern farming. Tractor pulling threshing machine which harvests and separates the wheat from the chaff.



Artist: Howard V. Brown

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

Restoration by: magscanner