428-GX-USN 1155176:  Naval Hospital, Oakland, California.  Lieutenant Commander Rodney A. Knutson continues the morning exercises he started during his internment in a prison camp in North Vietnam.  Photographed received March 1973.  U.S. Navy photograph, now in the collections of the National Archives.  (2016/04/26).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/127906254@N06">National Museum of the U.S. Navy</a>
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