Closeup of research pilot Neil Armstrong operating the Iron Cross Attitude Simulator reaction controls simulating the in X-15 flight at high altitudes.
NASA
Taken on 8 October 1956
<a rel="nofollow" class="external text" href="http://www.dfrc.nasa.gov/Gallery/Photo/IronCross/HTML/E56-2607.html">Dryden Flight Research Center Photo Collection</a> (<a rel="nofollow" class="external text" href="http://www.dfrc.nasa.gov/Gallery/Photo/IronCross/Large/E56-2607.jpg">image link</a>)