Denomination : Silver drachm.
Reference : Sear Greek 1657. SNG COP 454.
Size : 13.0 x 14.0 mm. Weight : 2.87 grams.
Grade : gVF obverse slightly off-center.
Obverse : Facing Gorgon head.
Reverse : Anchor with an A and a crayfish to the sides (note that I imaged the reverse upside down).