330-CFD-DN-ST-90-01482: A Mark 45 5-inch 54-caliber gun fires from the bow of the destroyer USS Thorn (DD 988), during the multinational naval exercise UNITAS XXV, 6/19/1984.  PHC Terry C. Mitchell, USN.  (OPA-NARA II-2015/12/24).
<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@N06/23317830813/">330-CFD-DN-ST-90-01482</a>