From the Morgan Sweeney Photograph Collection (PH-00228). Car load of transformer oil on cableway skip, to be used in transformer serving N-8 to be seen in background. Transformer 3-phase, manufactured in Switzerland in August 22, 1961.
An image of Boulder Dam with open jet flow gates (outlet works). The name was officially changed to Hoover Dam in 1947. Text on postcard reads: "Boulder Dam - upstream face."