Keywords: 3rd Ordnance Battalion DUI.svg en 3rd Ordnance Battalion distinctive unit insignia 1942-08-26 The Institute of Heraldryhttp //www tioh hqda pentagon mil/Catalog/HeraldryMulti aspx CategoryId 8960 grp 2 menu Uniformed 20Services U S Army other versions PD-USGov US Army Battalion Distinctive Unit Insignia Pershing unit insignia |