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."
Description given with photo: "Hughes Turns Quizmaster, Washington: Howard Hughes (right) submits a list of questions intended for Senator Owen Brewster (R. Me.) to chairman Homer Ferguson (R, Mich.) of the Senate War Investigating Subcommittee. Hughes had said he could prove that Bewster's claims about Hughes' business were "a pack of lies" if he were permitted to cross-examine the senator. The written questions resulted. Credit (ACME) 8/7/47."
Description given with photo: "As Hughes Began Testimony, Washington: Like a "Hollywood movie set" is this general view of the Senate Caucus Room as plane manufacturer, Howard Hughes began his testimony today (Aug. 6) before the Senate War Investigating Subcommittee. At the witness table (center) sits Hughes (right) and the attorney for the Hughes Tool Co., T.A. Slack (left). On left, directly in front of the battery of newsreel cameras is the committee table. Credit (ACME) 8/7/47."
Description given with photo: "Hughes Leaves For California, Washington: Howard Hughes signs autographs as he arrives at Washington Airport Aug. 12 for return trip to California following the adjournment of the Senate hearing on his plane contracts. Hughes said he would be back on Now. 17 to finish his story before the Senate Subcommittee if the inquiry is resumed on the date. Creditline (ACME) 8/12/47."
Description given with photo: "102,266 - Watch Your Credit - International News Photo. Slug - (Slack-Flanagan-Hughes) War Probers Subpoenaed Hughes' Private Papers, Washington, D.C. Senate War Investigating Committee counsel Francis Flanagan, center, is shown as he presented a subpoena issued by sub-committee chairman Homer Ferguson, (R) of Mich., directing Howard Hughes, right, to produce all private records connected with the Hughes wartime aircraft contract inquiry. Thomas A. Slack, counsel for Hughes, is at left. -INP Photo by G.B. Kress- 8/8/47."