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Helldorado Parade procession at night, Las Vegas, Nevada, approximately 1930-1939
Archival Collection
Archival Component
Helldorado Days Parade, Las Vegas, Nevada, approximately 1934-1939
Archival Collection
Archival Component
Dutch Goerman and a woman at the Helldorado parade, approximately 1934-1939
Archival Collection
Archival Component
Several officials signing the contract to construct Hoover Dam, 1931 April
Archival Collection
Archival Component
Carl Gray handing Ray Lyman Wilbur the first railroad spur spike for Hoover Dam, approximately 1930-1933
Archival Collection
Archival Component
Representatives of the Colorado River Commission, approximately 1930-1933
Archival Collection
Archival Component
Colorado River above Black Canyon before construction on the Hoover Dam, approximately 1930-1934
Archival Collection
Archival Component
Beginning of a 5000-hole blast, Hoover Dam, approximately 1930-1934
Archival Collection
Archival Component
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