80-G-701383:  Radio sono-buoy, a sea weapon used against German u-boats.   Artist’s rendering in the weapon’s use.   Photograph released October 25, 1945.  (7/8/2015).
<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@N06/19549814895/">80-G-701383</a>