Aegina, AE15, 404-375 BC. 2.86 g. 

Three dolphins swimming right around a large A.
Incuse skew pattern with five sections. O or 
Omega faintly visible in one of the sections.

Mionnet Supp. III, 46.

With permission of Fritz Rudolf Künker GmbH, auction 133, Lot 7415, Oct 2007