What a handsome lady! I have a similar type, the more common Campanian didrachm. This one is a bit special though, being minted in Nola, not Neapolis. The lady on the obverse - Parthenope, one of the sirens from the Odyssee - must have had some mad singing skills! It's tricky to photograph unfortunately:
Nola, AR didrachm
400 - 375 BC
Obverse: diademed head of nymph (Parthenope) facing left
Reverse: man-faced bull (Achelous) advancing right, crowned by Nike flying above, NOLAION in exergue