Hoover Dam guide "Blackie" Hardy posing on top of the Hoover Dam. In this photograph, Hardy is quoted with saying that he'd be proud to have this specific photo in every paper in the country. Individual Creator's credit goes to Jim Blackton Moore.
Black and white image of Hoover Dam with the accompanying description: "Placing concrete in block at mid-section of Dam. Eight cu. yd. bucket handled by cableway is in use." Note: Boulder Dam was officially renamed Hoover Dam in 1947.