Ptolemaic Kings Of Egypt. Ptolemy I Soter 305-282 BC. AE hemiobol. 17 mm, 3.73 g. Tyre. Struck after 294 BC. 

Diademed head of Alexander III right, , wearing mitra 
with horn of Ammon. 
BASILEWS PTOLEMAIOY, Eagle standing left on thunderbolt, wings spread. Club over AP monogram in left field. 

Svoronos 630; Cox, Curium 73.
Very rare

With permission of Gemini auction V, Lot 688, Jan 2009.