The Royal Navy <i>Amphion</i>-class submarine operating on the surface in the South China Sea during exercise "Oceanlink", in May 1958.
U.S. Navy
U.S. Navy photo <a rel="nofollow" class="external autonumber" href="http://www.navysite.de/cruisebooks/cv47-58/210.htm">[1]</a> from the <a rel="nofollow" class="external text" href="http://www.navysite.de/cruisebooks/cv47-58/index_016.htm">USS <i>Philippine Sea</i> (CVS-47) 1957-1958 cruise book</a> available at <a rel="nofollow" class="external text" href="http://navysite.de/cruisebooks/index.html">Navysite.de</a>