Three U.S. Navy Grumman S2F-1 <i>Tracker</i> (BuNo 133174 in the foreground) from the Oakland Naval Air Reserve in formation over the San Francisco, California (USA), area on 23 December 1956. The Golden Gate Bridge is visible below.
U.S. Navy
Official U.S. Navy photo <a rel="nofollow" class="external text" href="https://www.history.navy.mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/Other/K-21587.html">K-21587</a> from the U.S. Navy <a rel="nofollow" class="external text" href="http://www.history.navy.mil">Naval History and Heritage Command</a>