Ptolemy II Philadelphos. AE Obol, 285-246 BC. 

Laureate head of Zeus right
PTOLEMAIOY BASILEOS to left and right of eagle standing on 
thunderbolt facing left, closed wings, no monogram between 
legs, tripod symbol in left field. 

Svoronos 791; SNG Cop 476.

With permission of Roma Numismatics, Jun, 2010