A 50-ton capacity crane next to the dry dock at the U.S. Naval Station Roosevelt Roads, Puerto Rico, circa 1963.
U.S. Navy
circa 1963 <div style="display: none;">date QS:P,+1963-00-00T00:00:00Z/9,P1480,Q5727902</div>
<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/ah196303.pdf">March 1963</a>, p. 35.