Date: | 1894 |
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Description: | Illustration of a "Prairie Breaking Plow" of the 1840s. Includes the text: "Prairie Breaking Plow of 50 Years Ago." |
Date: | 1937 |
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Description: | Front cover of a booklet advertising Oliver Hart-Paar tractors featuring a color illustration of a farmer using a tractor and plow in a field. |
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