80-G-707444:  Deep Sea Diving School, Naval Gun Factory, Washington, D.C.  When proficient in the simulated operations held in the school, the new diver descends into the Anacostia River.  Here his training is completely realistic.  He performs various types of work and searches for metal objects thrown into the water from the diving platform, released February 3, 1950.     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@N06/27676570955/">80-G-707444</a>