I have a copy of a 1930 "Honorable Discharge from the Army of the United States". It lists "Qualification in arms". The text for that line looks like "M. Sept 30/27 S. O. 75 Oct 10/27 S. Oct 11/28 R. S. O 105 Oct 15/28, E. R. Oct 19/29 S. O. 104, 1st E(?)ugrs Oct 31/29"
Can anyone tell me what arms he qualified in or what the S.O. 75, R.S.O. 105, E.R., S.O. 104, 1st E(?)ugrs codes mean?
Another thread on these boards said :
"RA = Regular Army
ERA = Enlisted Reserve Corps
NG = National Guard
RA Res. = Regular Army Reserve" but these don't match anything I have.