Arsames I. ca 240 BC. AE19 Chalkous, 4.13 g. 

Head right, wearing pointed tiara with drapes covering neck
BASILEWS ARSAMOU, ..OBOMON, Winged thunderbolt. 

Bedoukian, Coinage 4 (same dies); AC 4 (same dies). 
Extremely rare. 

With permission of Gorny & Mosch, March 2007.