Denomination : Silver tetradrachm.
Reference : Sear-6764, Newell 80 pl Vii, #13
Size : 27.8 x 29.2 mm. Weight : 17.07 grams.
Grade : VF
Obverse : Head of Demetrios right.
Reverse : Poseidon standing left with his foot on a rock, with BASILIWS DHMHTRIOU to the sides, and a Greek letter monogram to the left.