re: Can anyone Identify this military style LSU cap?

The plot thickens:



Now - this is very likely before the Ostwald cap could have been a factor (this picture is 28-29), but look at the up front trombone player - THAT looks reasonably like a gold/silver braid style strap as opposed to the others (other than the Drum Major of course) with the traditional, likely black leather strap we know would have been more consistent with the ordinary ROTC caps that virtually all of the students wore in the days of mandatory ROTC.