Dolphin series. AE Quadrans, 189-180 BC. Obv. Head of Hercules right, waering lion skin; behind, three pellets. Rev. Prow right; above, dolphin; before, three pellets; below, ROMA. Cr. 160/4. 9.50 g. 23.00 mm. RR. Very rare. Lovely deep green patina. Good VF.