Mysia, Pergamon, c. 133-67 BC. AR Cistophoric Tetradrachm (26mm, 12.52g, 12h). Cista mystica with serpent; all within ivy wreath. R/ Bow-case with serpents, monogram to l., monogram above, snake-entwined staff to r. SNG BnF 1712; SNG von Aulock -. Toned, VF