Seleucus III Ceraunus (226-223 BC) AR tetradrachm, Antioch mint, 226-225 BC. 

Diademed head of Seleucus III right.
BASILEWS SELEYKOY, Apollo seated left on omphalos, examining 
arrow and resting hand on grounded bow, YX monogram in 
left field, inverted Omega over P in outer right field. 

SNGIs 501, Newell WSM 1029, SC 921(1)

With permission of Münzen & Medaillen (DE) GmbH auction 46, Lot 265, Feb. 2018.