309th Air Commando Squadron emblem.  Approved 14 March 1966.
<a href="https://en.wikipedia.org/wiki/United_States_Army_Institute_of_Heraldry" class="extiw" title="en:United States Army Institute of Heraldry">en:United States Army Institute of Heraldry</a>
Edited versio9n of photo of patch at <a rel="nofollow" class="external free" href="https://picclick.com/VIETNAM-WAR-BE-PATCH-US-309th-AIR-COMMANDO-131904091298.html">https://picclick.com/VIETNAM-WAR-BE-PATCH-US-309th-AIR-COMMANDO-131904091298.html</a>