A-1 unit in Arizona wing of Boulder Dam powerhouse. Written with the image: "Started prodA-1 unit in Arizona wing of Boulder Dam powerhouse. Started producing power 10/12041 minus finish work of any kind." (photo by Bill Russell, USBR photographer from cab of upstream crane 300 ton.)
Photographic postcard showing the newly completed Hoover Dam and intake towers. Description given on bottom of photograph: "Boulder Dam upstream face and intake towers. Note newly constructed Highway which connects Kingman, Arizona with Boulder City, Nevada."
Black and white image of Hoover Dam under construction in Black Canyon. Arizona and Nevada can be seen on either side of the dam in this picture. Note: Boulder Dam was officially renamed Hoover Dam in 1947.