Mysia, Pergamon AR Cistophoric Tetradrachm (Silver, 12.08g, 26mm) ca 166-67 BC. Struck ca. 76 BC
Obv: Serpent emerging from within cista mystica with open lid; all within ivy wreath.
Rev: Bow case between two entwined serpents; above, AΠ above monogram and star; in left field, monogram of Pergamon; in right field, serpent-entwined staff.
Ref: Kleiner 25; SNG BN 1726-7.