80-G-40641:   PC Boat on Convoy Duty.  A sailor uses the long glass to identify a ship barely visible on the horizon at left.  Photograph released 1942.   U.S. Navy Photograph, now in the collections of the National Archives.  (2016/06/07).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/127906254@N06">National Museum of the U.S. Navy</a>
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