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Flashlight photograph of drilling jumbo working on invert excavation at upper portal of diversion tunnel Number 4: photographic print, 1932 March 08

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Wings extended for drilling fold back against the sides of drilling jumbo: photographic print, 1932 March 08

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

First-aid station and ambulance located at river camp above upper portals. Similar hospital is maintained at lower portals: photographic print, 1932 March 08

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Interior of one of many drill sharpening stations, showing forge and Ingersoll-Rand drill sharpener: photographic print, 1932 February 15

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Caterpillar 60 with bull-dozer in front and cow-dozer aft, used extensively for moving muck: photographic print, 1932 March 08

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Marion electric shovel with 3.5 cubic yard rock dipper loading into White 8 cubic yard truck, at Nevada spillway cut: photographic print, 1932 March 18

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component

Mack truck with 14 cubic yard body being loaded at Nevada spillway cut. Five similar trucks being used on this operation: photographic print, 1932 March 18

Level of Description

Item

Archival Collection

Six Companies, Inc. Hoover Dam Photograph Collection

Archival Component