MYSIA. Pergamon. Circa 166-67 BC. Cistophorus (Silver, 32 mm, 12.77 g, 12 h), c. 160-150. Serpent emerging to left from a partially open cista mystica; around, ivy wreath. Rev. Bow in gorytos between two upwardly coiling snakes; to left, monogram ΠEPΓ; to right, bee flying to left, entering a rose. Kleiner & Noe Series 16, 36. A very rare symbol. Beautifully struck from fresh dies. Extremely fine.