428-GX-K-40764: U.S. Naval Amphibious Base, Coronado, California.  A U.S. Navy “Tadpole” in training for an Underwater Demolition Team participates in a mapping exercise on the beach during his training.  Photographed by JO1 James Johnston, October 1967.  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@N06/25206716176/">428-GX-K-40764</a>