President Franklin D. Roosevelt stands watch on the left as two trumpeteers start the dedication ceremony for the Boulder Dam Opening of the Spillways.
High scalers at Hoover Dam, with the Colorado River visible in the left side of the photo. Located on the back of the postcard is a handwritten description.
An image showing a bird's eye view of Hoover Dam and vehicles on its crest from the Nevada side. The name was officially changed from Boulder Dam to Hoover Dam in 1947.