Stamped : 'Approved (Signed) A. Maguire, Assistant Chief Engineer.' In lower right corner: '6-W-74.' Some annotations written over in yellow; black dotted line added between forebay and final spring in the northwest. Scale [ca. 1:6,000] 1 in.=500 feet
Narrator affiliation: Physicist, First director, Lawrence Livermore Laboratory; Arms control negotiator; Director, Defense Dept. Research and Engineering
Black and white image of the downstream face of Hoover Dam and its power plant at night, as seen from the lower portal road at the dam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
The Lockheed 14 aircraft in France. Text printed on photograph's accompanying strip of paper: "Howard Hughes as he landed in Paris on the first leg of his round-the-world flight."