<a href="https://en.wikipedia.org/wiki/Weapons_Storage_and_Security_System" class="extiw" title="w:Weapons Storage and Security System">Weapons Storage and Security System (WS3)</a> vault holding a <a href="https://en.wikipedia.org/wiki/B61_nuclear_bomb" class="extiw" title="w:B61 nuclear bomb">B61</a> <a href="https://en.wikipedia.org/wiki/Nuclear_weapon" class="extiw" title="w:Nuclear weapon">nuclear bomb</a> (possibly inert training version). The vault is within a  <a href="https://en.wikipedia.org/wiki/Hardened_Aircraft_Shelter" class="extiw" title="w:Hardened Aircraft Shelter">Protective Aircraft Shelter (PAS)</a>, with a <a href="https://en.wikipedia.org/wiki/General_Dynamics_F-16_Fighting_Falcon" class="extiw" title="w:General Dynamics F-16 Fighting Falcon">F-16 Fighting Falcon</a> in the background.
US Air Force
Unknown date<div style="display: none;">Unknown date</div>. Must be in or before 2005, when it was reproduced in the below PDF.
<a rel="nofollow" class="external free" href="http://www.bits.de/public/pressreleases/pr290501e.htm">http://www.bits.de/public/pressreleases/pr290501e.htm</a>. also attributed to USAF <a rel="nofollow" class="external text" href="http://www.nrdc.org/nuclear/euro/euro_pt1.pdf">here</a>.