A colored postcard showing an artist's representation of an 150 man transport for the Boulder Dam, later renamed Hoover Dam, project in Black Canyon. Transcribed onto the top border of the image: "150 Man Transport, Boulder Dam Project."
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."
Women dressed in costume pose for a group photo during the celebration for the Boulder Dam Dedication. Arlene Mathews Smith is at the center of the photo. The others are unidentified.