MYSIA, Pergamon. Circa 166-67 BC. Cistophoric Tetradrachm (Silver, 24mm, 12.3 g), c. 85-76 BC. Basket (cista mystica) from which snake coils; around, ivy wreath with fruits Rev. Two snakes coiled around a bow case; between the snake heads, KP; to left, monogram of ΠΕΡΓ; to right, thyrsos entwined by a serpent.