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Creation date / 2019 / Week 26
- WATER POWER DEVELOPMENT.
- WATER POWER DEVELOPMENT.
- Vintage Hydroelectric Power Plant history.
- Vintage Hydroelectric Power Plant history.
- Greenock water wheel governor drawing, circa 1847.
- Greenock water wheel governor drawing, circa 1847.
- Greenock water wheel governor drawing, circa 1847.
- Greenock water wheel governor drawing, circa 1847.