Dad's Thoughts:
I believe the coin is a CARACALLA but the lettering is not that clear and there are odd features on it. For instance, there is a strange circular indentation on both sides of the coin in the central area as though a punched hole had been there. The obverse legend could read something like MAVR ANTONINVS CAES and the Reverse text for a Victory left is not as I would expect as it should normally start VICT. Caracalla coins did use ANTONINUS PIUS legend too and the head is not an Antonius Pius one in my view.