The face of the Boulder Dam Power Decennial plaque, which was made for the ten year anniversary of Boulder Dam, renamed Hoover Dam in 1947. Depicted on the sign is an outline of the downstream face of the Hoover Dam, along with outlines of the state seals of Arizona, California, Colorado, Nevada, New Mexico, Utah, and Wyoming. Transcribed across the sign: "Boulder Dam, Power Decennial. Flood Control - Irrigation - Power. Saluting Boulder Dam On Its Tenth Year Of Commercial Power Production. 1936-1946. Honoring The People Of The Colorado River Basin States. Whose initiative brought forth Boulder Dam, making possible: The maximum utilization of the water resources of this great river system; The prevention of floods; The conservation of water; The availability of hydroelectric energy to a wide area."

Three postcards. Boulder Dam and Lake Mean in Black Canyon; Boulder Dam Powerhouse - Nevada Wing; Sunset at Boulder Dam.

Three postcards. Nevada Lookout Point, Boulder Dam; Transcontinental Highway across Boulder Dam; Boulder Dam and Powerhouse, Fortification Mountain in Distance.

A grayscale view of Boulder City, Nevada; Boulder Dam Hotel and a building sign advertising "free Boulder Dam motion pictures" can be seen in the background.

Postcard depicting the Figures of the Republic statues at Boulder Dam. Background information and a map of the Boulder Dam are also shown.