Lysimachos, AR tetradrachm, Lysimachia mint. 323-281 BC, struck 297-282 BC. 

Diademed head of Alexander right, with horn of Ammon
BASILEWS LYSIMAXOY, Athena, helmeted, seated left, holding 
Nike and resting left elbow on a shield at her side; spear 
behind her. OM monogram in outer left field, lion’s head 
left in exergue.

Thompson 11 (slight variation of monogram); Armenak Hoard 644.

With permission of Baldwins Ltd, Summer 2014 auction, lot AG008.