Syracuse, Sicily; 395-360 BC; 22 mm AE trias; Sear 1193, VF
OBV: Head of Athena left, wearing a Corynthian helmet bound with an olive wreath; Greek letters SURA above (inverted), dolphins before and behind.
REV: Hippocamp facing left, with curled wings and tail.
Both sides are well centered, with sharp, high relief images, and a green and brown patina. Coins from this series are one of my personal favorites, and I think the image of the "sea horse" is one of the most interesting on ancient coins.