I've been trying to figure out what this coin is, but not having much luck.
The letters on the reverse seem to be IOTA IOTA PI OMICRON, unless this isn't Greek at all.
If this is a date it would be 170.
I don't know if this is a bull or a calf on the reverse.

The obverse portrait is drawn very angular, sharp pointed chin etc.
Although it looks Greek to me, most of the Greek coin portraits I see have much more rounded appearance.

Can anyone give me a clue as to what it might be or where to look.
Wildwinds doesn't seem to work when entering Greek phrases....it keeps coming up Roman.
I forgot to add...it's small coin about 10mm
Thanks again.