Antiochos I AR tetradrachm, Seleukid Kingdom, Pergamon mint under Philetairos, struck in the name of Seleukos I, sole reign 281-280 BC. 30 mm.

Head of Herakles right, wearing lionskin headdress.
BASILEWS SELEYKOY, Zeus seated left, holding eagle and sceptre.
Helmeted head of Athena right in left field, two crescents beneath the seat. 

SC 308c; Newell WSM 1534.

Contributed by Laurie Eades, Feb. 2021.