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A Six Companies freight barge at the lower portals: photographic print, 1931 September 26
Level of Description
Item
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
Marion electric shovel directly over the dam site during construction of the government highway: photographic print, 1931 September 26
Level of Description
Item
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
Bucyrus-Erie shovel excavation for Site Number 3 compressor plant: photographic print, 1931 June 02
Level of Description
Item
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
Bucyrus-Erie shovel excavation for Site Number 3 compressor plant: photographic print, 1931 June 02
Level of Description
Item
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
Shovel excavation of a blasted rock cut along the edge of Black Canyon: photographic print, 1931 June 02
Level of Description
Item
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
Six Companies railroad grade below Cape Horn, Black Canyon: photographic print, 1931 August 09
Level of Description
Item
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
Upper portal of the Six Companies railroad tunnel Number 1: photographic print, 1931 August 09
Level of Description
Item
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
Six Companies railroad grade above railroad tunnel Number 1 showing the proposed location of the "low-mix" concrete mixing plant: photographic print, 1931 August 09
Level of Description
Item
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
Boat landing at railroad tunnel Number 1 and the catwalk to the Arizona side of Black Canyon: photographic print, 1931 August 09
Level of Description
Item
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
Duplicate of photographic prints: photographic negatives, approximately 1932 to 1934
Level of Description
File
Archival Collection
Six Companies, Inc. Hoover Dam Photograph Collection
Archival Component
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