Your coin is slightly heavier and the dates don't match, but this coin on Wildwinds is similar.

Nabataea, Aretas II, AE15, 110-96 BC, 2.60g, Meshorer 1A, Obverse-Helmeted head right, Reverse-Winged Nike left.
This one on VCoins:

NABATAEAN KINGDOM. ARETAS II or III . DAMASCUS MINT. (3.4g , 16mm). Fine details.