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."

Howard Hughes and other unidentified men surrounded by crowds.

The black and white view of police men awaiting the arrival of the Lockheed 14 aircraft at Floyd Bennett Airport in New York. Typed onto a piece of paper attached onto the image: "Police in readiness for arrival of Hughes' plane, Floyd Bennett Airport, N.Y. -- Police lined up in front of a plane at Floyd Bennett Airport, as last-minute preparations were made for the arrival of Howard Hughes and his companions, who were winging over North Central America on the last leg of their epochal Round-The-World flight. By noon a crowd of 6,000 persons had assembled and countless others choked all roads leading to the field as the fliers drew nearer to their goal. Credit Line (ACME) 7/14/38."

Howard Hughes inside of the DC-3. Stamped on back of photo: "Hughes Aircraft Photo."

Howard Hughes sits at a desk surrounded by film reels and film equipment.

The black and white view of a crowd of people awaiting the arrival Lockheed 14 aircraft at Floyd Bennett Airport in New York. Typed onto a piece of paper attached to the image: "Tumultuous welcome awaits world fliers here Floyd Bennett Airport, N.Y. -- Policemen lined up on the field here awaiting the arrival of Howard Hughes and his companions, New York bound from Minneapolis, on the last leg of their epochal Round-The-World flight. By noon, a crowd of 6,000 persons had gathered at the airport, and it was increasing by the moment. Credit line (ACME). 7/14/38."

Howard Hughes (center), seated at banquet table.