Medical Service Officer Embroidered Hat Insignia This
officer hat insignia features gold embroidery on a black velvet field
and is made with top quality craftsmanship. Comes in Large for slouch
hats and Small for kepis. Generally Surgeons held the grade of Major and Assistant Surgeons of First Lieutenant or Captain. The letter "M.S." was sometimes worn on headgear in
place of the "U.S." in staff officers' wreaths. This was also a practice not condoned by
Regulations and something also done by members of other staff departments.
Surgeon David O. McCord of the 63rd USCT with slouch hat and U.S. Service Officer Embroidered Badge