This liner is for the old redesignated 38th Reconnaissance Battalion, in this time period, the very late 40s into the 50s is was at Knox as School Troops,   From the TIOH, TIOH doesn't list unit crest just the Coat of Arms, it's then possible no unit crest was approved for it, inactivated in 1958 there abouts by the CARS restructure The coat of arms was originally approved for the 38th Reconnaissance Battalion on 24 August 1951. It was redesignated for the 38th Cavalry Regiment and amended to add a crest on 1 October 2008.   And this from a PDF on unit      

Interesting picture.  It looks like the MG's have been removed.     OD  

The fact that he is in Class Bs, is he revisiting his own lost tank?

The only abbreviation I could come across for AMAS is from the Air Force, Aeromedical Airlift Squadron, but this patch doesn't strike me as medical related. I could be mistaken though. For no specific reason, I had wondered if it might be from a Marine Corps unit. Looks posibly Japanese made, about 5.5" high.  Anyone recognize it?

Thanks.  It is a very enjoyable show.

Excellent find. The Huntsville AL AMCA Show always has good deals. 

Great job. You have an amazing talent!

Ron,   I have one of these that is Japanese made and bullion. While it is possible that they were worn on the pocket later, they were most definitely worn on the right shoulder in Japan during the occupation.   Allan

I was in the First Infantry Division in 1968-1969 in Vietnam. Many guys used the ammo bandoliers to carry mags. I don’t really recall any countervailing SOP’s, directives, or orders that filtered down to “grunt level” anyway. I think I’m proving skautdog’s point that what one unit did one way could be entirely opposite of what another unit did (even in the same Division). Here’s a photo as an example:  

Maybe that was the Soldier's tank that he had to abandon and was going back to take a picture with it later on...   Leigh