SELEUKID EMPIRE. Antiochos I Soter (circa 281-261 BC). Seleukeia on the Tigris
AR Tetradrachm (26.9gmm 16.99g)
Obv: Diademed head to right
Rev: Apollo Delphios seated to left on omphalos, testing arrow and resting on grounded bow; ΒΑΣΙΛΕΩΣ to right, ΑΝΤΙΟΧΟΥ to left, ΠA monogram to outer left, HP monogram to outer right.
SC 379.1; SNG Spaer 287; ESM 143; HGC 9, 128g