CYCLADES, Keos. Koressos. Circa 480-470 BC. Trihemitetartemorion (Silver, 6.5 mm, 0.41 g, 3 h). Dolphin left; below, O. Rev. K within incuse square. HGC 6, 585 var. ( dolphin right ). Papageorgiadou-Banis Series III, 37 var. ( dolphin right ). Sheedy Series III, 41 var. ( dolphin right ). Extremely rare with dolphin left. Lightly toned and well centered. Very fine.

Ex Classical Numismatic Group E440, 20 March 2019, 119.