Black and white image of Hoover Dam visitors standing near freight car tracks, which were used to lower generators and related equipment to the power house. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of power generators at Hoover Dam. Caption on image reads: "Interior of powerhouse at Boulder Dam, with six 115,000-H.P generators installed. Service Bureau photo." Boulder Dam was officially renamed Hoover Dam in 1947.
Welding/Blacksmith shop on Arizona side of Hoover Dam. Note on back: "Men sharpening steel tools; pieces 4 to 20 ft. long. Were mostly all star bits. No welding done here. Ingersollrand (Ingersoll-Rand?) equipment sharpening station. - W. A. Davis."
An image of the downstream face of Hoover Dam in Black Canyon, showing the power plant, outlet works and diversion tunnel portals in the foreground. Note: Boulder Dam was officially renamed Hoover Dam in 1947.