A U.S. Marine Corps Kaman HOK-1 <i>Huskie</i> helicopter pictured hoisting fuel drums, in 1956. This appears to be the first production HOK-1 (after 1962: OH-43D), BuNo 128528.
U.S. Navy
<a rel="nofollow" class="external text" href="http://collections.naval.aviation.museum/emuwebdoncoms/pages/doncoms/AdvQuery.php">U.S. Navy National Museum of Naval Aviation</a> photo No. <a rel="nofollow" class="external text" href="http://collections.naval.aviation.museum/emuwebdoncoms/pages/doncoms/Display.php?irn=58724&amp;QueryPage=%2Femuwebdoncoms%2Fpages%2Fdoncoms%2FAdvQuery.php">2011.003.319.001</a>