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Interior of diversion tunnel Number 3, near upper portal. Invert and side wall sections of three-feet thick concrete lining have been poured: photographic print, 1932 June 02
Level of Description
Item
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
Interior of diversion tunnel Number 3, showing method of pouring alternate slabs in side wall section of tunnel lining. Lining form is shown in background: photographic print, 1932 June 22
Level of Description
Item
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
Hughes Nevada Organization, hotel closed circuit television agreement, photocopies, 1973 May 23
Level of Description
File
Archival Collection
Howard Hughes Film Production Records
Archival Component
Howard Hughes Medical Institute (HHMI)
Level of Description
File
Archival Collection
Howard Hughes Film Production Records
Archival Component
Raymond A. Cook, Mortimer Caplin, R. J. Cordiner, and Howard Hughes letters arguing against a claim deeming HHMI's assets as excessive, 1954 July 15 to 1956 March 26
Level of Description
File
Archival Collection
Howard Hughes Film Production Records
Archival Component
Application and supporting evidence requesting HHMI's tax exemption from the Internal Revenue Service, 1955 June 01
Level of Description
File
Archival Collection
Howard Hughes Film Production Records
Archival Component
Robert L. Meyer, letters to medical researchers requesting to review his HHMI article on lactate dehydrogenase (LDH) tests for kidney and bladder carcinomas, 1955 November 29 to 1970 November 14
Level of Description
File
Archival Collection
Howard Hughes Film Production Records
Archival Component
HHMI summary of goals and accomplishments, drafts with edits, approximately 1960 to 1962
Level of Description
File
Archival Collection
Howard Hughes Film Production Records
Archival Component
Wright Patman, Richard Hannah, and Robert A. Maheu letters, reports, and congressional record regarding the HHMI's assets, 1962 July 23 to 1962 August 25
Level of Description
File
Archival Collection
Howard Hughes Film Production Records
Archival Component
Mary K. Markette, Nadine Henley, and Richard Hannah, copies of the HHMI mission statement and corporate background, 1962 August 15
Level of Description
File
Archival Collection
Howard Hughes Film Production Records
Archival Component
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