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English: Hoover Dam plan. Freely available online item of historic interest.
Date 1930


Public domain This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.

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  • 2006-11-18 02:35 Jsecure 1520×580× (363765 bytes) Freely available online item of historic interest
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