3625th Technical Training Squadron.  3625th Technical Training Group emblem approved 12 December 1958 with disc shape replacing shield shape.
<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>
1958-12-12
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