Michael Collins laying down, observing a checklist in a simulator of the command module.
NASA, scanned by NASA Johnson
<a rel="nofollow" class="external text" href="https://www.hq.nasa.gov/alsj/a11/ap11-S69-38202HR.jpg">Image S69-38202</a>, <a rel="nofollow" class="external text" href="https://www.hq.nasa.gov/alsj/a11/images11.html">album</a>