Date: | 06 21 1938 |
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Description: | Men gather around International PD-80 Diesel power units as they set them up on a drill rig. |
Date: | 06 21 1938 |
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Description: | A man sits on the back of an International D-346-F truck outfitted with a core-drilling and shallow-well-drilling rig. The truck was also fitted with an In... |
Date: | 11 10 1937 |
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Description: | Two men work at an oil well site powered by an International Model P-30 power unit mounted on a truck. |
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