Kings of Pergamon, Attalos I, 241 - 197 BCrnSilver Tetradrachm, Pergamon Mint, 31mm, 15.55 gramsrnObverse: Head of Herakles right wearing lion skin headdress.rnReverse: Zeus seated left holding eagle and scepter.rnStruck in the name of Alexander of Macedon.rnPrice2931