Watch List notes:

KINGS of THRACE, Odrysian. Saratokos. Circa 407-369 BC. AR Obol (9mm, 0.64 g, 12h). Youthful male head right / ΣΔ monogram within incuse square. Peykov B0380; cf. Topalov I 67 (trihemiobol); cf. HGC 3, 1681 (diobol). Toned, some porosity. VF. Well centered and struck for issue.