80-G-633588:  USS Missouri (BB-63).  Naval Academy Midshipmen practice sending and receiving messages with a 24-inch signal light, during Midshipmen's cruise, June 1953. Those present are (left to right): Peter W. Sandusky, 3rd Class; Edward H. Browne, 3rd Class; Robert F. Rigling, 1st Class. Official U.S. Navy Photograph, now in the collections of the National Archives.   (2016/02/15).
<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@N06/24423260023/">80-G-633588</a>