On a 2 1/4 inch (5.72 cm) red square a white fret placed diagonally consisting of six pieces each 1 5/8 inches (4.13 cm) long by 1/4 inch (.64 cm) wide.
The six elements of the fret are indicative of the numerical designation of the organization.
The shoulder sleeve insignia was approved on 23 October 1944. (TIOH Dwg. No. A-1-358)