1931st Information Systems Wing emblem (later 1931st Communications Group)  Approved 4 April 1985
<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>
2014-05-12 11:04:35
<a rel="nofollow" class="external free" href="http://www.24af.af.mil/shared/media/document/AFD-140429-035.pdf">http://www.24af.af.mil/shared/media/document/AFD-140429-035.pdf</a>