From the Elizabeth Harrington Photograph Collection (PH-00291). Inscription with image reads: "Grammar School Gymnasium." (Photo by Robert Harrington, 1959).
Black and white image of "Big Bertha," the Six Companies, Inc. motor transport used to haul workmen between Boulder City and Hoover Dam. This double-decker truck could haul 154 men. Note: Boulder Dam was officially renamed Hoover Dam in 1947.