Watch List notes:

SICILY, Syracuse. Hieron II. 275-215 BC. Æ Tetras (19mm, 6.57 g, 10h). Struck 263-218 BC. Head of Poseidon left, wearing tainia / Ornamented trident head; flanked by dolphins downward, Σ to right of shaft. CNS 197 R 20; BAR Issue 60; HGC 2, 1470 and 1550. Brown-green surfaces, minor green encrustations. VF.