80-G-706976:  Navy Diving School, Washington, D.C.   Harold Weisbrod, Navy diver, sets record for “Wet Tank” dive at the U.S. Naval Gun Factory, Washington, D.C.  The decompression process was a long and intricate one for these members of the U.S. Naval Experimental Diving Unit as they decreased the pressure on their submerged mate, Weisbrod, while he was making a dive to a simulated depth of 561 feet.  Crewmen, left to right:  Chief Metalsmith Wesley Singleton who is manning the pressure controls; Chief Gunner’s Mate Kenneth Ploof, and a qualified master diver, who is directing the operation and keeping in verbal communication with Weisbrod; Hospitalman First Class Bob E. Wright, who is holding a stop watch to see that all changes in pressure are exactly in accordance with the decompression tables; and Boatswain’s Mate George B. Phillip, released 18 March 1949.  U.S. Navy Photograph, now in the collections of the National Archives.  (2016/06/14).
<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@N06/27676587805/">80-G-706976</a>