Watch List notes:

Elagabalus. A.D. 218-222. AR denarius (21 mm, 3.10 g, 12 h). Rome mint, Struck A.D. 219. IMP CAES M ANTONINVS AVG, laureate and draped bust right / MARS VICTOR, Mars advancing right, holding spear and trophy over his shoulder. RIC 123; RSC 113b. EF, frosty surfaces.