Lot-7882-6:  British Activities, WWI.   A battery of heavy howitzers pounding the German trenches. Courtesy of the Library of Congress.  (2016/07/29).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/127906254@N06">National Museum of the U.S. Navy</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/127906254@N06/28556214151/">Lot-7882-6</a>