Lysimachus, AR tetradrachm, 31mm, 17.12 g. Sestos mint. ca 287-281 BC. 

Diademed head of deified Alexander right, with horn of Ammon.
BASILEWS LUSIMACOU, Athena seated right, holding Nike in her 
extended right hand and left resting on shield, spear 
leaning against the chair back. Dolphin swimming right 
in inner left field, PM monogram on side of throne. 

Thompson 24; Armenak hoard 657. 

With permission of Numismatik Lanz, Nov. 2003