Mysia, Pergamon. Ca. 166-67 B.C. AR cistophoric tetradrachm (28 mm, 12.58 g, 12 h). Ca. 95-92 B.C. Serpent crawling from cista mystica with lid ajar; all within ivy wreath / Bow-case with serpents; in left field, monogram of Pergamon; above, BO; in right field, thyrsos with serpent coiled about the staff. Kleiner 10; SNG BN 1718. Near VF, lightly toned, slight slightly bent.