MYSIA, Pergamon. Circa 166-67 BC. AR Tetradrachm (28mm, 12.63 g, 12h). Cistophoric standard. Struck circa 160-150 BC. Cista mystica, from which serpent emerges, within ivy wreath / Two serpents entwined around bow and bowcase; civic monogram to left, grain ear to right. Kleiner & Noe Series 14, obv. die 32; SNG BN 1702 (same obv. die). Find patina. EF.