CNG May 2001. Sicily, Syracuse. After 410 BC. Æ 17mm (6.84 gm). Head of Athena left, wearing Corinthian helmet with coiled serpent / Hippocamp left without bridles. Calciati II pg. 83, 35. VF, dark green patina. Estimate $100. Used by permission of CNG, www.historicalcoins.com