The exterior of Hughes Research Laboratories where rock bits were test-drilled in Culver City, California in the 1940s. Transcribed from note taped to back of photo: "Rock bits are test-drilled in the laboratory under conditions that duplicate, as far as is possible in the laboratory, those encountered in actual drilling. As a result, rotational speeds, loads, and fluid volume are closely controlled. The rig operator occupies a splash-proof booth above the 'cellar floor.' The instruments on his control panel provide for application and measurement of variable axial loading on the drilling bit up to 100,000 lbs., variable rotational speeds up to 400 rpm, measurement of bit penetration over a total vertical travel of 5 feet at rates up to 180 ft. per hour, and torque. On the panel, also, are several controls for the operation of mud pump and other accessory equipment."

Two of the Las Vegas High School Rhythmettes with Jack Dempsey in his restaurant in New York City, New York.

A view of Howard Hughes (right) being asked about his controversial XF-11 photo reconnaissance plane by Senator Harry Cain (left), Republican of Washington, in Culver City, California. An unidentified man sits between the two.

Photograph of Ranger John R. "Jack" Weiler's home in Boulder City, 1938-1939.

First floor of Boulder City Museum room, looking north. Door at the right leads to the administrative Offices. Door at the right leads outside.

Engineers test radar equipment at the Hughes Aircraft Company in 1959.