9. Master Engineer Junior Grade, Transportation Corps, 1919. 10. Master Chemical
Sergeant, 1918. 11. Farrier, Cavalry, 1902. 12. Farrier, Field Artillery, 1908.
13. Chauffeur, 1918. 14. Bugler First Class, Infantry, 1918.

NCO AND SPECIALIST RANK INSIGNIA, 1920-1958

1. Master Sergeant, 1920. 2. First Sergeant, 1920. 3. First Sergeant, 1942. 4. Technical Sergeant, 1920. 5. Technician 3rd Grade, 1942. 6. Technician 4th Grade, 1942. 7. Technician 5th Grade, 1942. 8. Master

1. First Sergeant. 2. Master Sergeant. 3. Sergeant First Class. 4. Sergeant. 5. Corporal.

6. First Sergeant. 7. Master Sergeant. 8. Sergeant First Class. 9. Sergeant. 10. Corporal.