The insignia for warrant officer (junior grade) was a gold bar wide and long, rounded at the ends with brown enamel on top and a latitudinal center of gold (0.32 cm) inch wide. The insignia for chief warrant officer was a gold bar in width and in length with rounded ends, brown enamel on top with a longitudinal center stripe of gold wide. The brown enamel backing of the warrant officer insignia was based on the color of the sleeve insignia of rank for ship's officers of the AMPS.