Watch List notes:

MACEDON, Akanthos. Circa 430-390 BC. AR Diobol (11mm, 0.92 g). Helmeted head of Athena right; Π before visor (very faint) / Quadripartite incuse square, ethnic in quarters. AMNG III/2, 29–30 var. (obv. letter not noted); HGC 3.1, 393 var. (same); CNG E-406, lot 100. VF, porous. Extremely rare with letter on obverse.

From the AG Collection. Ex Kovacs MBS XII (30 November 1995), lot 19.