Two U.S. Navy Lockheed SP-2H <i>Neptune</i> (BuNo 144681, 143172) form Patrol Squadron 21 (VP-21) "Black Jacks" in flight over U.S. Naval station Argentia, Newfoundland, in August 1963.
U.S. Navy
Official U.S. Navy photo <a rel="nofollow" class="external text" href="http://www.history.navy.mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/USN-1094000/USN-1094565.html">USN 1094565</a> from the U.S. Navy <a rel="nofollow" class="external text" href="http://www.history.navy.mil">Naval History and Heritage Command</a>