90th Fighter Squadron emblem.  Approved 19 January 1945.
<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>
<a rel="nofollow" class="external free" href="https://www.afhra.af.mil/About-Us/Fact-Sheets/Display/Article/432818/90-flying-training-squadron-aetc/">https://www.afhra.af.mil/About-Us/Fact-Sheets/Display/Article/432818/90-flying-training-squadron-aetc/</a> edited with Microsoft Paint to agree with description and image in Maurer, Combat Squadrons of the United States Air Force in World War II