Denarius of Elagabalus, from an Eastern mint?

Obv.: Bust of emperor, r., draped and laureate. Rev.: Elagabalus, draped to feet, with double girdle and large knot, standing front, head l., sacrificing from patera in r. hand over a lighted altar, l., and holding club at l. shoulder; above altar in l., field, a large star.