US ARMY 18TH ENGINEER BRIGADE SHOULDER SLEEVE INSIGNIA MIL-DTL-14652B NOS DESIGN DESIGNATION ENGINEER BRIGADE FEATURES PROVIDED EMBROIDERED AND SUBDUED DEPARTMENT DESIGNATION US ARMY AWARD IDENTIFICATION DESIGNATOR 18TH PROCUREMENT GROUP CODE 38387 NONDEFINITIVE SPEC/STD DATA I TYPE AND 1 STYLE AND 2 CLASS REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS AS DIFFERENTIATED BY OLIVE DRAB AND BLACK COLOR AREAS