Ashokan Lower gate chamber, with electrically driven valves, vertical genartor operated by water turbine and overhead traveling crane. Contracts 31, 42, 43 and 56. August 31, 1917 (NYPL b13814376 435375)

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Size: 1956px × 1277px
Photo credit: © Historic Collection / Alamy / Afripics
License: Licensed
Model Released: No

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