Men working inside of the HK-1, Hughes Flying Boat on Terminal Island in the Los Angeles Harbor. Transcribed from note on back of photo: "Inside the Boat: Shown in a view looking toward the tail of the Hughes Flying Boat, the man is dwarfed by the giant interior of the airplane."

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."

A plane, designed by Howard Hughes, parked on a field with a group of people in the foreground. The plane is numbered, CF-EJO-X, and it is an Avro Canada Jetline.

Black and white image of school children in front of the Boulder City Elementary School, now the home of City Hall, located at 401 California Avenue in Boulder City. Four hundred of the 550 enrolled pupils are seen in front of the school.

Transcribed from attached press release: "HUGHES ROCK BIT TEST In a block-long laboratory at Houston, Texas, the Hughes Tool Company can simulate oil drilling conditions anywhere in the world. Here a Hughes bit is tested on a hard formation. Howard Hughes' father invented the rock bit in 1908 and the resulting business became the cornerstone on which Howard Hughes built his fabulous industrial empire in motion pictures, air transportation, aeronautical research and design, aircraft manufacture, electronics, armament and brewing."

Transcribed from attached press release: "Howard Hughes, right, noted aircraft designer and industrialist is shown for the first time on the flight deck of the famed Hughes flying boat, which he designed and built. It is the largest airplane in the world. The plane is now nearing completion on Terminal Island, in Los Angeles-Long Bay Harbor, May 12, 1947." Los Angeles Harbor is now known as Long Beach Harbor, California.