Date: | 1936 |
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Description: | A drawing titled: "The Life of Two Farmers" illustrating the difference in work loads between a horse farmer and a Farmall tractor farmer. According to the... |
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. |
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