428-GX-USN 1147120:  The U.S. Navy Deep Submergence Rescue Vehicle (DSRV) makes a test dive off San Diego, California.  Photograph released February 1971.  U.S. Navy photograph, now in the collections of the National Archives.  (2016/02/23). Original is from reference card only.
<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@N06/24865305769/">428-GX-USN 1147120</a>