Date: | 01 19 1938 |
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Description: | A young man stands on a platform above an International PA-80 power unit (converted into a P-100) at a gravel pit owned by Mogg County. |
Date: | 1976 |
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Description: | Color photo of workers cutting blocks of limestone in a quarry. There are what appear to be moveable platforms on tracks at the bottom of the face of the a... |
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