Watch List notes:

SELEUKID EMPIRE. Seleukos II Kallinikos. 246-225 BC. AR Tetradrachm (26mm, 16.26 g, 6h). Antioch on the Orontes mint. Diademed head right / Apollo, testing arrow, standing left, leaning on tripod to right; monograms to outer left and outer right. SC 689.3 var. (outer right monogram); Le Rider, Antioche 55 var. (O3/R– [unlisted with this outer right monogram]); HGC 9, 303p. Lightly toned, roughness and porosity, cleaning marks. VF. Unpublished variety.