501st Aviation Regiment Crest " The Warding Eye" (each) EOD 10th Mountain Division Challenge Coin

10th Mountain Division Challenge Coin

CBRN OCP Patch with Hook Fastener (pair)

172nd Infantry Brigade Combat Team CSIB

2nd Infantry Division OCP Patch with Hook Fastener (pair)

501st Aviation Regiment Crest " The Warding Eye" (each) EOD 10th Mountain Division Challenge Coin501st Aviation Regiment Crest " The Warding Eye" (each). A distinctive unit insignia (DUI) is a metallic heraldic badge or device worn by soldiers in the United States Army. The DUI design is derived from the coat of arms authorized for a unit. DUIs may also be called "distinctive insignia" (DI) or, imprecisely, a "crest" or a "unit crest" by soldiers or collectors. The U. S. Army Institute of Heraldry is responsible for the design, development and