Stratos, Akarnania, AR Trihemiobol, 10mm, 0.97g. 420-400 BC. 

Head of the river-god Acheloos right, (crescent below)
Large T within incuse. 

Traité II-4, 16; BCD Akarnania 4 (this coin); Imhoof Akarnanien 7 (under Oinadae). 

With permission of Münzen & Medaillen DE, BCD collection
sale, Oct 2007, no. 4.