Demetrios I Soter. Seleukid Kingdom. 162-150 BC. AR Drachm, 16.5mm, 4.15 g. Ektabana mint. 

Diademed head right.
BASILEWS DHMHTRIOY SWTHROS, Apollo seated left on omphalos, 
examining an arrow and resting hand on bow. 
AXR and QEO downwards in left field, FILIP downwards in right field. 

BMC 2 (this coin); SNG Spaer 1384; CSE 1262; Le Rider Suse C29; Sear 7107.