Persian, maybe Parthian Empire? Is it copper or silver? The lettering looks definitely greek.
That round part on the reverse looks like it was after the fact, soldered into a button or piece of jewelry. Is it raised higher than the other features?
This has similar features at least on the one side
https://en.numista.com/catalogue/pieces46920.html
And the face looks like it's possibly straight on instead of profile, like one of these (examples, neither looks quite like yours)