Itanos, Crete, AR stater. Ca. 350-320 BC. 11 g. 

Triton right with fish's tail, left hand raised and 
with his right spearing a fish with a trident.
ITANION, two sea monsters facing each other. 

BMC 5; Wroth 5 Svoronos, Crète ancienne 22.

Image courtesy of A. Krasanaki