<i>Title:</i> New quick drying defense huts demonstrated to government officials. Washington, D.C., Aug. 25. By means of a new invention known as the vacuum concrete process, a pill box fort was erected on the grounds of the National Bureau of Standards today in the record time of four hours. The purpose of the demonstration was to show a new and more efficient method of construction for defense purposes under emergencies. K.P. billner (right) inventor of the process, is pictured explaining it to Dr. Lyman Briggs, ([...])Director of the Bureau of Standards, and [..] Monroe Johnson, Assistant Secretary of Commerce
<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/2016873977">https://lccn.loc.gov/2016873977</a></li>
<li><i>Image download:</i> <a rel="nofollow" class="external free" href="https://cdn.loc.gov/master/pnp/hec/25000/25007a.tif">https://cdn.loc.gov/master/pnp/hec/25000/25007a.tif</a></li>
<li><i>Original url:</i> <a rel="nofollow" class="external free" href="https://www.loc.gov/pictures/item/2016873977/">https://www.loc.gov/pictures/item/2016873977/</a></li></ul>