Pg.86 #3365 Looking upstream toward Boulder Dam and Power House. Jul. 25, 1935. Pg.86 #3373 Looking across the top of Boulder Dam, from the Nevada side. Jul. 26, 1935. Pg.86 #3378 The Nevada Valve House, with the refrigeration Plant below. July 26, 1935.
A colored postcard portraying an artist's rendering of a Hoover (Boulder) Dam interior. Printed on the top border of the card: "Entrance to one of the four 56 foot diversion tunnels, Boulder Dam Project." Handwritten text on back of card.