Watch List notes:

SELEUKID EMPIRE. Antiochos II Theos. 261-246 BC. AR Tetradrachm (28.5mm, 16.78 g, 6h). Seleukeia on the Tigris mint. Diademed head of Antiochos I right / Apollo Delphios seated left on omphalos, testing arrow, resting hand on bow; monograms to outer left and [right]. SC 587.4b; HGC 9, 236g; CNG E-98, lot 51 (same obv. die, showing both monograms on rev.). VF, toned, some roughness, double struck on reverse.