Denomination : Silver tetradrachm.
Size : 18.5 x 24.8 mm. Weight : 17.06 grams.
Reference : Sear-2547.
Grade : Fine with pretty good centering for such an oval flan.
Obverse : Head of Athena right.
Reverse : Owl standing right, with an olive sprig and crescent moon over its shoulder, with AQE to the right.