Macedon, Akanthos AR Diobol. Circa 470-390 BC. Helmeted head of Athena right / Quadripartite incuse square; A-K-A-N in quadrants. SNG Ashmolean 2218. 0.77g, 11mm.
Lightly toned, Good Very Fine.
From the Mark Christenson Collection;
Ex ArtCoins Roma E10, lot 246.