Antiochos I, AR tetradrachm, 280-261 BC. Sardes mint. 26 mm, 17.17 g. 

Head of Herakles right, wearing lionskin headdress.
BASILEWS ANTIOXOY, Zeus seated left, holding Nike and sceptre.

DDK monogram over archaic Z in left field.

Houghton SC 321.1; Newell WSM 1360; Houghton Collection 595; GRPC Lydia 249.

With permission of Nomos AG obolos 20, Lot 266, July 2020.