Cyclades, Kythnos AR Tetartemorion. Circa 475-460 BC. Lily / Quadripartite incuse square. Kyrou and Artemis "The Silver Coinage of Kythnos in the Early Fifth Century BC" in Studies Price, 40; HGC 6, 605. 0.15g, 6mm.
Very Fine. Extremely rare denomination.
From a private European collection.