Attambelos I, king of Characene, AR Tetradrachm, 31 mm, 12 g. Dated local year 272, 41-40 BC.

Diademed head of king right with long curls.
BASILEWS ATTAMBHLOY SWTHROS KAI EYERGETOY around Herakles 
seated left on rock, resting on club. Monogram in upper 
left field, date BOS below. 

BMC 3; Hill 14 in "Attambelos I" (in ANS NNM 14).

With permission of Numismatik Lanz München - Auction 97, Lot 358, May 2000.