1986 Utah SSP Rescue

[86UtahSSP]

I was working on some documentation/cataloging and stumbled upon some factory stamps on the fenders and hood that I am unfamiliar with. Any thoughts?

I still have VIN stamps on the inner fenders which was nice, considering it has had front end damage from an accident. Also, I still had the T5 tag that seems to be correct as a June 23, 1986 3rd shift build (F2363). I could definitely be wrong though. Overall I was just checking for originality of what's left. I would like to remove the interior at some point to check for a build sheet.

Where else should I check for factory codes/stamps?