I suspect because he is listed as being a butter bar 2nd Lt. that he was pretty fresh. I would think if he had any real time under his belt in the war, he would have been promoted by then. But...who knows?
I doubt a letter from SRS will disclose too much, but I should probably still go ahead and order it. I am assuming the "AR" listed designates Army Reserve, but several other sales listings in SRS provide the initials of the recipient, too. I didn't see periods in the listing (not A.R.), so I assumed thr letters were not his initials. Maybe I'll get lucky and the sales document will provide his full name, or at least initials, so I can figure out who he was. But regardless of who he was, I'm happy to have his pistol.