Kings Of Thrace. Lysimachos, 305-281 BC. AR Tetradrachm 30 mm, 16.87 g, 11 h), Lampsakos, ca 297-281. 

Diademed head of Alexander III right with horn of Ammon.
BASILEWS LYSIMAXOY, Athena seated left, holding Nike and leaning on shield decorated with lion's head.
Herm in outer left field, DX monogram in inner left field.

Müller 91. Thompson 50. 

With permission of Leu Numismatik AG - Web Auction 19, Lot 214, Feb 2022

Additional refs:
SNG France 5, 2553-2554; Paris 119; Valton 287; Armenak hoard 755-771; Gordion hoard I, 60; Mionnet I, 56; Luynes 1813; SNG Cop 1095-1096; Meydancikkale hoard 2614-2616; Mesopotamia hoard 37-38; Schlessinger Hermitage theft sale Feb 1935, lot 541; Bunbury 627.2