Two sea cadets clean a 40 mm Mk 1 twin mount aboard the former U.S. Navy light aircraft carrier USS <i>Cabot</i> (CVL-28) at New Orleans, Louisiana (USA), in 1990.
U.S. Navy
<a rel="nofollow" class="external text" href="http://www.navy.mil/ah_online/department_arch.html">U.S. Navy All Hands magazine</a> <a rel="nofollow" class="external text" href="http://www.navy.mil/ah_online/archpdf/ah199007.pdf">July 1990</a>, p. 15.