Watch List notes:

IONIA. Magnesia ad Maeandrum. Archepolis, circa 459 BC. Tetartemorion (Silver, 7 mm, 0.20 g, 6 h). Bearded head of Zeus to right, his hair bound with a taenia. Rev. Eagle flying to right; below, monogram of ΑΡ; all within the linear border of an incuse square. Sheedy, Clarke Studies, Ar. M 25 (O23/R24). Toned. Rough surfaces, otherwise, very fine.
From the "Collection sans Pareille" of Ancient Greek Fractions, ex Lanz 144, 24 November 2008, 240.

Archepolis was the son of Themistocles.