Date: | 1917 |
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Description: | Cartoon illustrating "the layman's idea of how horse-power is determined." The cartoon shows an automobile in a "tug-of-war" with a large number of horses. |
Date: | 1917 |
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Description: | Two views of a man using the Elgin tractor. The image at left shows the farmer using the machine in a field; the image at right depicts the man using the t... |
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