Watch List notes:

Sicily, Dionysios I (405-367), Tetras, Syracuse, c. 405-400 BC; AE (g 2,23; mm 12; h 10); Facing head of nymph, slightly l.; at l., EΞ, linear border, Rv. Octopus. CNS II, 29 fr 1; SNG Copenhagen 679-680; SNG ANS 385.
Very rare for the signature on obverse (Exakestidas), green patina, good very fine.