It's not my coin. But one of my friend ask me who is this? I say maybe Gallienus am I right or not? upload images free image hosting 12mb
I think so too, to judge from the emperor's profile. Gallienus has a larger jaw with a curly short beard.
i think you guys are correct, looks like you can just make out the "IMP AVR(ELIANVS) AVG" on the obverse legend.