A colored postcard showing an artist's representation of a small boat sailing on the upstream face of Hoover Dam, previously known as Boulder Dam, in Black Canyon. Transcribed onto the top border of the image: "Upstream Face And Intake Towers, Boulder Dam."
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.
High scaling during early constuction at Boulder Dam [left], Transporting men by cableway, Boulder Dam [middle], Boulder Dam dowstream face and power house [right], 1931-1936
A Nevada side view of Lake Mead filled at the recently completed Hoover Dam. Caption at bottom of postcard reads: "Boulder Dam crest and intake towers, looking toward Arizona side." Boulder Dam was officially re-named Hoover Dam in 1947.
A colored postcard showing an artist's representation of water flowing over the spillway gates from Lake Mead into Hoover Dam, previously known as Boulder Dam, in Black Canyon. Transcribed onto the top border of the image: "Lake Mead Flowing over Spillway Gates, Boulder Dam."