Black and white image of the eight cubic yard capacity bucket discharging a load into the upstream face of Hoover Dam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of the Boulder Dam. The name was officially changed to Hoover Dam in 1947. Text from postcard: "Upstream face of Boulder Dam. Note roadway which connects Kingman, Arizona, and Boulder City, Nevada. Six Companies Inc. Photo."