American Military Patches, Other Insignia and Decorations
of World War Two by Dr. Howard G. Lanham c.2001
Other Insignia Not Shoulder Sleeve Insignia
Second World War
U.S. Army Grade Insignia
Part Three: Enlisted Men Chevrons
Master Sergeant
First Sergeant
First Sergeant (1)
Technical Sergeant
Staff Sergeant
Sergeant
Corporal
Private First Class
Technician 3rd Grade
Technician 4th Grade
Technician 5th Grade
There were various styles of manufacture of chevrons and also different background colors used. I have tried to show examples of the more common variations.
Notes:
In 1942 the design of the First Sergeant chevron was changed and it became the highest grade since
many veteran NCOs were promoted into the First Sergeant grade in the expanding Army.