330-PSA-168-64 (USN 1105345):   U.S. Naval Station, Bermuda, July 23, 1964.  Sealab I diver leaving the submersible decompression chamber “elevator” prior to entering the U.S. Navy’s Sealab I undersea laboratory.  (2015/11/03).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/127906254@N06">National Museum of the U.S. Navy</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/127906254@N06/22592467470/">330-PSA-168-64 (USN 1105345)</a>