Date: | 1915 |
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Description: | Front cover of a pamphlet advertising the Detroit Tractor featuring a photograph of the Detroit 10-20 "plowing in hard ground." |
Date: | 1915 |
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Description: | Front cover of a pamphlet advertising the Bullock Tractor Company. A photograph of a man using the tractor in a farm field is accompanied by the text: "Wor... |
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