Attica, Athens. Roman Republican period, c. 87/6 BC. Æ Chalkous (18,5mm, 8g). Struck under Mithradates VI of Pontos and Aristion, Tyrant of Athens. Helmeted head of Athena right. R/ Zeus striding right, preparing to cast thunderbolt; to right, star within two crescents. Kroll 97; Svoronos, Athenes pl. 81, 45-8.