ISLANDS off THRACE, Thasos. Circa 500-480 BC. AR Obol (9mm, 0.53 g). Two dolphins swimming in opposite directions, one over the other; pellets around / Quadripartite incuse square. Le Rider, Thasiennes, 9; SNG Copenhagen 1020; HGC 6, 337. VF, darkly toned, minor surface roughness.