Astronaut <a href="https://en.wikipedia.org/wiki/Alan_Shepard" class="extiw" title="w:Alan Shepard">Alan B. Shepard</a> gives thumbs-up at the CAPCOM console in <a href="https://en.wikipedia.org/wiki/Mercury_Control_Center" class="extiw" title="w:Mercury Control Center">Mercury Control Center</a>, during the <a href="https://en.wikipedia.org/wiki/Mercury-Redstone_4" class="extiw" title="w:Mercury-Redstone 4">Mercury-Redstone 4</a> mission.
NASA
1961-07-21
<a rel="nofollow" class="external free" href="http://www.nasa.gov/externalflash/ksc_45th/hi-resjpgs/2.jpg">http://www.nasa.gov/externalflash/ksc_45th/hi-resjpgs/2.jpg</a>