<div class="description">
Original Caption: 38 - Project Gravel Contract No-C-0057. Mixer No. 1 looking along processing lines and barricade (1-10)</div>
This file was contributed to Wikimedia Commons by <a href="https://www.wikidata.org/wiki/Q29982657" class="extiw" title="d:Q29982657"><span title="regional archival facility of the National Archives and Records Administration">National Archives at Boston</span></a> as part of a cooperation project. The donation was facilitated by the <a href="https://en.wikipedia.org/wiki/Digital_Public_Library_of_America" class="extiw" title="w:Digital Public Library of America">Digital Public Library of America</a>, via its partner National Archives and Records Administration.<span style="text-align:left">
<ul><li><a rel="nofollow" class="external text" href="https://catalog.archives.gov/id/77821667">Record in source catalog</a></li>
<li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/cefbd3c496eb2e35b13867b4c987d49c">cefbd3c496eb2e35b13867b4c987d49c</a></li>
<li>National Archives Identifier:  77821667</li></ul></span>