Caracalla, AR Denarius, 201-206, Group I, RomeANTONINVS-PIVS AVGLaureate, draped bust right, seen from behind ADVENTVS / AVGVSTOR Galley sailing left, four rowers in center, two seated figures under canopy at right, mast with sail on prow, two standards on stern, waves below 18mm x 19mm, 2.88g