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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
Date
1931-08-09
Container
Folder 01,
To request this item in person:
Collection Number: PH-00267
Collection Name: Six Companies, Inc. Hoover Dam Photograph Collection
Box/Folder: Folder 01
English