Eumenes II, Dynast of Pergamon, Thyateira mint. AR 
Cistophoric Tetradrachm. Dated year 2 of his revolt=132-131 
BC. 12.10 gr.

Cista mystica with serpent; all within ivy wreath.
Bow-case with serpents; thunderbolt above,QYA to left; male 
head (Dionysos?) to right; BA-EY within coils of serpents, B 
lower down, 

Robinson 5, Kleiner & Noe Series 1, SNGvA 3198; Imhoof, 
"Die Münzen der Dynastie von Pergamon" 82 citing Paris 2684 
(this coin).