Watch List notes:

Eastern Europe. Imitating Philip II of Macedon. 2nd century B.C. AR drachm (15.4 mm, 1.86 g, 11 h). Kugelwange type. Struck by the Skordoski in Syrmia. Phase B. Rare. Celticized head of Zeus right, wearing laurel wreath / Celticized horse advancing right; pellet in annulet above. cf. Lanz 507; cf, CCCBM I S134. VF. 

Lanz does not list a right facing horse for this type.