MYSIA. Pergamon. Circa 139-136 BC. Cistophoric Tetradrachm (Silver, 28 mm, 12.26 g, 12 h). Basket (cista mystica) from which snake coils; around, ivy wreath with fruits. Rev. Two snakes coiled around a bow case; to left, monogram of ΠEPΓ; to right, crested Macedonian helmet left. Kleiner & Noe Series 25b. Pinder -. SNG BN -. SNG Copenhagen -. Curiously double-struck, otherwise, very fine.