Insignia
According the website of the U.S. Army Institute of Heraldry, the insignia of the Army Service Forces consisted of "a blue five-pointed star, one point up, 1⅜ inches in diameter on a white background within a red border, outside diameter 2¼ inches, inside invected of six." The patch was approved on July 30, 1941 and has had numerous designations. It redesignated as the "Army Service Forces" patch in March 1943; "Technical and Administrative Services" in June 1946; and "DA Staff Support" in 1969. The shoulder sleeve insignia is now authorized for personnel assigned to Department of the Army Field Operating Agencies. From 1980 through 2006 it was worn by members of the U.S. Army Trial Defense Service.
Read more about this topic: Army Service Forces