 Utility uniform rank insignia are black metal pins and are worn on the collars, or black embroidered insignia sewn into patches of material when wearing armor.Musicians in the United States Marine Band wear insignia with lyre in the center as opposed to the crossed rifles, to denote their lack of a combat mission; full-service Marines who are attached to the 10 field bands of the Operating Forces and Supporting Establishment continue to wear their normal rank insignia.The crossed M1 rifles insignia were added to E-3 through E-8 chevrons in 1959.