Macedon, Neapolis. 480 - 460 BC. AR Trihemiobol (11mm, 0.90 gr). Goose standing to right, head turned back to left; above, lizard crawling to
left, seen from above; below goose, A.R/ Incuse square. SNG ANS 285-6 (Eion).  Light porosity, toned and extremely fine

The place of discovery of these coins is in the territory of the Neapolitans (PHILIPPI) and have no connection with EION that is near Amphipolis! There are analogous coin types with the letter N as well as the letters H, Λ and Θ.