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Filter: Subject of machinery
| Date: | 06 16 1912 |
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| Description: | Elevated view of steam powered pile drivers at work on the coffer dam. |
| Date: | 08 04 1914 |
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| Description: | An interior view of the power house at the Prairie du Sac dam, showing assembly of the generators, identified by the manufacturer, the Allis-Chalmers Compa... |
| Date: | 1915 |
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| Description: | Elevated view of a man standing near the generators inside the power house at the Prairie du Sac dam. The base of the generators is marked with the name of... |
| Date: | 1915 |
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| Description: | A worker standing at the controls of a generator, most likely in the temporary power house at the Prairie du Sac dam site. The steam driven generator produ... |
| Date: | 09 17 1937 |
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| Description: | A Star heavy-duty 45-C spudder rig and an International PD-80 diesel power unit stand on a building site at Martin Hoffman, No.3, Forest Development Compan... |
| Date: | 1931 |
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| Description: | View from shoreline of a crane lifting machinery to workers at the top of the bridge during construction. Words on the crane reads, "Stevens Brothers and S... |
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