Calabria, Tarentum, AR nomos (didrachm), "boy on dolphin," mounted dolphin-side out in 14K gold pendant with shackle bail. 11.96 grams total. Taras astride dolphin left / Helmeted nude warrior on horse prancing right. Nicely toned VF coin in a simple, three-pronged custom setting with a rounded bezel.
Estimate: $600 - $900