Watch List notes:

Macedon, Eion AR Diobol. Circa 480-470 BC. Goose standing to right, head reverted; [three pellets to left] / Rough incuse square. SNG ANS 270-72; SNG Copenhagen 173; HGC 3.1, 519. 0.47g, 9mm.

Good Very Fine.

From a private German collection;
Ex Roma Numismatics Ltd., E-Sale 35, 3 May 2017, lot 162.