U.S. World War I Officer State Abbreviation for Collars
A - N.H. for New Hamphire. Pinback with nice dark bronze. Pair. Exc + $35.00 RARE

B - L.A. for Louisiana PAIR with small pattern for shirt, All three pinback with dark bronze finish. Exc + $40.00 RARE

C - C.M.A. do not know what these are for. Pinback with dark bronze finish. Exc + $15.00