Kos, Caria, AE15 civic issue, 260-210 BC, 2.42 g. Magistrate Exaigretos. 

Head of Herakles left, wearing lionskin headdress.
KWION EXAIGRETOS above and beneath crab, club below. 

BMC 96; SNG Cop 644; Ingvaldsen XVI, 26

With permission of Numismatik Naumann auction 55, Lot 313, July 2017.