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Filter: Subject of machinery
| Date: | 06 13 1913 |
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| Description: | Workmen and machinery at the quarry on Blackhawk Bluff. The gravel was used in construction of the power dam. |
| Date: | 1938 |
|---|---|
| Description: | Worker using an International TracTracTor (crawler tractor) in a mining operation. Original caption states: "owned by Possum Hollow Coal Company. Building ... |
| Date: | 1912 |
|---|---|
| Description: | A distant view of Madero Lumber Company. There are houses and other residential buildings in the foreground, and the lumber works in the background. In the... |
| Date: | 01 19 1938 |
|---|---|
| Description: | Two men standing next to mining cars near the opening of the Beam & Merritt mine as an International PA-50 power unit is installed. |
| Date: | 01 13 1938 |
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| Description: | An Adams road grader equipped with a McCormick-Deering power unit is used by a county road crew to smooth a road in a rural area near the Ohio and Indiana ... |
| Date: | 11 04 1937 |
|---|---|
| Description: | A man operates machinery powered by an International PA-50 power unit owned by Starbuck Construction Company. |
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