Postcard with an illustration of Fremont street looking west at the hotels, stores, and traffic. The typed caption reads: "Looking west on Fremont Street, Las Vegas." Site Name: Fremont Street (Las Vegas, Nev.) Street Address: Fremont Street

Postcard with an illustration of Hoover Dam. The caption reads: "Boulder Dam, as it will look when completed, Colorado River."

Illustration of Boulder Dam, later called Hoover Dam, with the view of lower portals and diversion tunnels. The caption reads: "Boulder Dam, looking upstream, showing Colorado River."

Illustration of Boulder Dam, later called Hoover Dam, construction. Caption reads: "A close-up, showing construction detail, Boulder Dam, Colorado River."

Illustration the of a train and people standing near it. Caption reads: "Union Pacific Miracle Train passing through a 30 foot intake pipe, Boulder Dam project."

Illustration "showing the immense concrete forms of Boulder Dam. Looking downstream, Colorado River."

Illustration of Boulder City, in which many houses and neighborhoods can be seen. The caption reads: "Boulder City, Nevada. A model city built to house the workmen engaged on the Boulder Dam [later known as the Hoover Dam] Project."