Watch List notes:

KINGS of PERGAMON. Attalos II. 158-138 BC. AR Tetradrachm (29mm, 12.53 g, 12h). Cistophoric type. Ephesos mint. Dated RY 21 (139/8 BC). Cista mystica within ivy wreath / Two serpents entwined around bow and bowcase; A K (date) across upper field, filleted double cornucopia to right. Kleiner, Dated, Series 2A, obv. die 3; SNG Copenhagen –; SNG von Aulock 1857; DCA 317. VF, lightly toned.