Date: | 07 14 1927 |
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Description: | A man uses a Gilbert road grader with a twenty foot blade to work on the Yellowstone Trail. |
Date: | 1924 |
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Description: | Two men use a 15-30(?) tractor and a grader on a dirt road. In the background are numerous oil derricks and industrial buildings. |
Date: | 1958 |
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Description: | A Lindekugel portable gravel crusher works to build a highway. |
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