<p>Filed under mining.</p>
<ul><li>Subjects (LCTGM): Mine safety--Equipment and supplies; Mines and mineral; resources--Washington (State)</li></ul>
<div class="fn value">
Unknown author<span style="display: none;">Unknown author</span></div>
1914<div style="display: none;">date QS:P571,+1914-00-00T00:00:00Z/9</div>
<a rel="nofollow" class="external text" href="http://content.lib.washington.edu/indoccweb/index.html">Industries and Occupations Photographs Collection</a>