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Topic
- Hydroelectric power plants 26
- Water-power 13
- Factories 12
- Hydroelectric power plant retirement 12
- Industrial buildings 12
- Northwestern Electric Company 12
- Power-plants 12
- Dams 6
- Spillways 4
- Hydroelectric generators 3
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Local Collection Name
- Angelus Studio Photographs 26
Format
- image/tiff 26
Collection
- Angelus Studio photographs, 1880s-1940s 26