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Scientific American 1926-07

ScientificAmerican1926-07.jpg Scientific American 1913-09-27ThumbnailsSignal Radio Components -1922AScientific American 1913-09-27ThumbnailsSignal Radio Components -1922AScientific American 1913-09-27ThumbnailsSignal Radio Components -1922AScientific American 1913-09-27ThumbnailsSignal Radio Components -1922A

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