AR Denarius [2,83 gm, 20,70 mm]. Uncertain eastern mint. Struck 219/20 AD. IMP ANTO NINVS AVG, laureate, draped, and cuirassed bust right / ADVENTVS AVG,emperor on horseback right, holding reins and raising hand. RIC 184 var. (bust type); Thirion 340; BMCRE 309 var. (same); RSC 2 var. (same). Very rare. Some porosity and roughness, toned VF.