MYSIA, Pergamon. Ca. 133-67 BC. AR Cistophoric Tetradrachm (12.52 gm; 26 mm). Struck circa 92-88 BC. Cista mystica with serpent, all within ivy wreath / Bowcase flanked by two serpents, heads confronted, BO monogram above, serpent twined around thyrsus to right, monogram to left. Kleiner, Hoard 10; SNG BnF 1718. Lovely strike on a good metal. Choice FDC. Toned.