<i>Title:</i> New sand-blasting helmet. Washington, D.C., Oct. 15. Protection against that dreaded disease Silieosis, is assured underground workers with this new sand-blasting helmet developed by William P. Biggs, Safety Engineer of the Navy Department Weighing only 43 ounces the helmet has been tested for nearly a year in various naval stations throughout the country
<i>Abstract/medium:</i> 1 negative : glass ; 4 x 5 in. or smaller
Harris &amp; Ewing, photographer
<p>Library of Congress
</p>
<ul><li><i>Catalog:</i> <a rel="nofollow" class="external free" href="https://lccn.loc.gov/2016878676">https://lccn.loc.gov/2016878676</a></li>
<li><i>Image download:</i> <a rel="nofollow" class="external free" href="https://cdn.loc.gov/service/pnp/hec/33900/33973v.jpg">https://cdn.loc.gov/service/pnp/hec/33900/33973v.jpg</a></li>
<li><i>Original url:</i> <a rel="nofollow" class="external free" href="https://www.loc.gov/pictures/item/2016878676/">https://www.loc.gov/pictures/item/2016878676/</a></li></ul>