Text on bottom of postcard reads: "Night view of Boulder Dam- downstream face and highway on crest." Boulder Dam was officially re-named Hoover Dam in 1947.
Black and white image of officials from the Six Companies of San Francisco and the Bureau of Reclamation, as well as some local individuals, signing the contract to construct Hoover Dam (note: Boulder Dam was officially renamed Hoover Dam in 1947). Henry J. Kaiser is seated and signing the contract. Standing to the far right are Walker J. Young and C.P. "Pop" Squires. Also identified in the photograph (in no particular order) are W.R. Armstrong, R.F. Walter, and Louis Crampton.