Two triangles, 2 1/2 inches (6.35 cm) base, red with white centers, one reversed above the other with apexes overlapping, the entire design 2 inches in height.
The composition of this design alludes to the numerical designation of the organization.
The shoulder sleeve insignia was approved on 29 August 1944. It was amended to revise the description on 11 September 1944. (TIOH Drawing Number A-1-363)