Roman Legion Symbols Found in Ancient Cave

[Jona Lendering]

(Bahram II fighting against an unidentified Roman)

Why a Roman? He looks more like another Persian or Parthian.

I know; and besides, at the end of the third century, Rome was often successful. Still, this is what the explanatory sign said, and what I read in several books. One of the arguments appears to be the man's helmet. I admit that this is one of the subjects that I want to check, because Iranian explanatory signs, and Iranological books, are seldom up to date. BTW: almost all Sasanian rock relief commemorate either an investituture or a victory over a Roman emperor, the only enemy who really mattered.