Caption at bottom of postcard reads: 150 man transport- Boulder Dam Bureau of Reclamation Photo." Boulder Dam was officially re-named Hoover Dam in 1947.
Postcard advertizing a souvenir cable section paperweight of the Boulder Dam- Los Angeles power line. Boulder Dam was officially re-named Hoover Dam in 1947.
An image of a film crew shooting penstock valves while they were open for the Boulder Dam dedication. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
A group of men at the Boulder Dam (Hoover Dam) groundbreaking ceremony. The man in the Masonic apron is Rev. Charles Sumner Reynolds, pastor of the Las Vegas Methodist Church.
An image of four workers standing on a craned platform at the Hoover Dam construction site. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
A close-up photograph of a plaque at Hoover Dam listing the names of those who oversaw and assisted in the construction of Hoover Dam, on the left side of the elevator door, on the day of the dedication.
An image of Governor Herbert Ham and an unidentified man at the Boulder Dam decennial event. Note: Boulder Dam was officially renamed Hoover Dam in 1947.