Watch List notes:

MYSIA. Pergamon. (Circa 166-67 BC). Struck circa 160-150 BC.
AR Cistophoric Didrachm (22.1mm 6.07g)
Obv: Lion skin draped over upright club within wreath
Rev: Grape cluster over leaves; horizontal stylis to upper left; in lower left monogram
Kleiner & Noe Series 15 (dies 4-a) (no monogram)
Extremely Rare