Can anybody ID this worn coin for me please?

He appears to be wearing some kind of headgear, also there is a clear diagonal line goin from left to right, sloping upwards, just at his chin line. Sorry it's not so clear in this photo.
The reverse is very worn and my camera isn't picking much up. However, there seems to be 2 people standing either side, facing each other. There is something else in the middle... perhaps a person sitting on a chair but I'm really not sure, and I can see a vague horizontal line at the bottom, but not sure if it's part of the middle image or goes all the way across.
I got this when I was young and was under the impression it was a "Roman coin" but have no further information. I gave it to my son and he wants some info on it for a school project.
Any help is greatly appreciated. Thanks!


