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Drilling jumbos mounted on the back of a truck for lower portal Number 4. This first wood-frame jumbo was experimental, later they were steel pipe: photographic print, 1931 September 26
Archival Collection
To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Archival Component
Six Companies shovel operation at lower portal Number 4, Arizona side of Black Canyon: photographic print, 1931 September 28
Archival Collection
To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Archival Component
Lower portal Number 4, Arizona side of Black Canyon: photographic print, 1931 September 25
Archival Collection
To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Archival Component
Government pumping plant at the Colorado River in Black Canyon: photographic print, 1931 August 07
Archival Collection
To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Archival Component
Frigidaire drinking water and water-cooling plant at compressor plant Number 2, Arizona side of Black Canyon: photographic print, 1931 August 09
Archival Collection
To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Archival Component
Looking up from a point below the lower portals, showing the government pumping plant (lower left), the Six Companies' compressor plant (middle left), the location of the lower portals, and the highway loop above the canyon wall (upper center): photographic print, 1931 July 30
Archival Collection
To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Archival Component
A Six Companies freight barge at the lower portals: photographic print, 1931 September 26
Archival Collection
To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Archival Component
Marion electric shovel directly over the dam site during construction of the government highway: photographic print, 1931 September 26
Archival Collection
To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Archival Component
Bucyrus-Erie shovel excavation for Site Number 3 compressor plant: photographic print, 1931 June 02
Archival Collection
To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Archival Component
Bucyrus-Erie shovel excavation for Site Number 3 compressor plant: photographic print, 1931 June 02
Archival Collection
To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
Archival Component
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