Watch List notes:

Greek Italy. Etruria, Cosa. AE Quartuncia, c. 273-250 BC. Obv. Bearded head of Mars right, wearing crested Corinthian helmet. Rev. [CO-Z-A-NO]. Bridled head of a horse left, resting on a dolphin swimming left. HN Italy 210; SNG Cop. 17. AE. 5.27 g. 17.00 mm. R. A choice example of this rare issue. Lovely deep green patina. VF/Good VF.