Ptolemy III Philopater, AE25 Dichalkon, 221-204 BC, Alexandria Mint. 
Obv: Head of Alexander right, wearing elephant skin headdress, horn of Ammon and aegis. 
Rev: PTOLEMAIOY BASILEOS, eagle standing left on thunderbolt, E between legs.

Svoronos 977.

ebay sale August 2014.