Poster for control room from USS Greenling, Naval Undersea Museum, Keyport, Washington, USA
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/7489441@N06">Clemens Vasters</a> from Viersen, Germany
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/clemensv/6908036411/">IMG_4984_edited-1.JPG</a>