Date: | 06 29 1938 |
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Description: | A man operates an International PD-80 power unit mounted on a suction dredge for sand and gravel. The power unit is owned by Roy Deringer of Ithaca, Michig... |
Date: | 10 12 1938 |
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Description: | Men work with a Universal crusher, used to crush 400 yards of gravel in 8 hours. The crusher was powered by an International PA-100 power unit owned by E.F... |
Date: | 01 11 1938 |
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Description: | Simmons stone crusher powered by an International power unit at a State Highway Commission stone quarry. |
Date: | 12 22 1937 |
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Description: | Brookville locomotive pulling dump cars in a rock quarry owned by General Refractories Company. Two men can be seen sitting inside through the front window... |
Date: | 1976 |
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Description: | Two workers and a large yellow crane at a limestone quarry. There are large blocks of roughly cut limestone, and numerous trees are in the background. The ... |
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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