Watch List notes:

Greek Asia. Bithynia, Calchedon. AR Drachm, c. 387/6-340 BC. Obv. KAΛX. Bull standing left; caduceus before; Δ below. Rev. Quadripartite incuse square with stippled quarters. HGC 7 511. AR. 3.88 g. 14.00 mm. Good VF.