Greek Italy. Etruria, Cosa. AE 19 mm. (Quartuncia), 273-c. 250 BC. Obv. Helmeted, bearded head of Mars right. Rev. Head of bridled horse left on dolphin; around, CO[SANO]. HN Italy 210; SNG Cop. 17. 5.61 g. 19.00 mm. RR. About VF.