Spain, Arsaos (Saguntum), AE sextans, mid 2nd Cent. BC. 3.34g., 15mm. 

Obv: Scallop shell.
Rev: Dolphin right, three pellets above; script (resembling D/|\IS)
below. 

Sear Greece I, 27; Ripolles I, 154; Heiss 5.

Courtesy of Hellenika Ancient Numismatics on vcoins.com, May 2012.