Search for all of "equipment", all of "Standard Oil Co Of California"

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Water outlets at Hoover Dam during construction View of the outlet works spewing water. This photo was taken while the dam was still under construction and shows cables, construction equipment and workers.
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Hoover Dam construction -- upstream face Close-up view of the upstream face of Hoover Dam and part of the power houses. Hoisting machinery is visible.
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Colorado River -- Hoover Dam site View looking down at the Colorado River in Black Canyon, the future site of Hoover Dam. Roads and buildings can be seen on the banks above the river and some construction equipment is visible.
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Upper portals -- Hoover Dam site Handwritten inscription on back of photo: "View at upper portals showing narrowed channel just prior to diversion". Construction roads, equipment, and workers are visible. Some buildings and trucks are also in the picture.
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Construction of Hoover Dam intake towers View of the construction of the intake towers at Hoover Dam, looking up from the floor of the canyon. The face of the dam is visible at left and hoisting machinery can be seen next to the towers.
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Working on cofferdam -- Hoover Dam Handwritten inscription on back: "Unloading dirt for coffer dam" from railroad cars.
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Construction -- Hoover Dam Handwritten inscription on back of photo: "Rex motor mixer that has been picked off a white truck and being swung into position at tunnel #1 with load of cement." Shows hoisting machinery, railroad tracks, a steam locomotive, a...
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Hoover Dam construction Shows a box car being lowered to the central power house during the construction of Hoover Dam. The downstream face of the dam is visible and construction equipment can be seen.

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