![File:Holyoke Hercules turbine.png](http://upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Holyoke_Hercules_turbine.png/390px-Holyoke_Hercules_turbine.png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 05:39, 21 January 2019 | ![]() | 1,405 × 2,159 (3.93 MB) | Simtropolitan | {{Information |description ={{en|1=An engraving of the vertical "Hercules" turbine by the {{w|Holyoke Machine Company}}}} |date =1901 |source =[https://archive.org/details/holyokemachineco00unse/page/48 Holyoke Machine Company catalogue] |author =Holyoke Machine Company |permission ={{PD-US}} }} Category:Holyoke Machine Company Category:Water turbines Category:Engravings of machines |
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