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Interior of Six Companies machine shop showing equipment to handle heavy machine work, 1932 March 11
Archival Collection
Archival Component
Looking upstream at Black Canyon and foot bridges, 1932 March 12
Archival Collection
Archival Component
First 40-foot slab of concrete poured in lining of the diversion tunnels, 1932 March 18
Archival Collection
Archival Component
Rake type sand classifier producing finished sand for storage, 1932 March 19
Archival Collection
Archival Component
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