Date: | 1920 |
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Description: | A man uses a Cletrac crawler tractor and disc harrow to do work in an uphill farm field. |
Date: | 1920 |
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Description: | Advertisement for the Cletrac tank-type crawler tractor featuring illustrations of the machine in use in farm fields; the image at left depicts plowing whi... |
Date: | 1920 |
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Description: | Advertisement for the Cletrac tank-type crawler tractor featuring a side-by-side photographic comparison of the Cletrac's plowing power versus that of anot... |
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