Control apparatus for an underwater television camera aboard aboard the U.S. Navy submarine rescue ship USS <i>Coucal</i> (ASR-8), during Operation Crossroads resurvey activities, 23 August 1947.
U.S. Navy photo <a rel="nofollow" class="external text" href="https://www.history.navy.mil/content/history/nhhc/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/80-G-627000/80-G-627612.html">80-G-627612</a>