Sicily. Messana. Mamertinoi. AE Double unit, 278-270 BC. Obv. Head of Herakles left, wearing lion's skin. Rev. Eagle standing right on thunderbolt, wings open; to right, coiled serpent. HGC 2 867. 10.36 g. 22 mm. R. Dark olive green patina with some light earthen deposits. VF.