Sicily, Akragas, Conical cast Hexas or Dionkion, 450-430 BC. 15mm high, 5.64 g.

AK above eagle standing left. 
Crab. Two dots (value mark) on the base.

Westermark, Group III, 527; Calciati 7; Hoover HGC 128.

With permission of TimeLine Auctions 
(www.timelineauctions.com), March. 2021