Watch List notes:

Diadumenian, 217-218. Denarius (Silver, 19mm, 3.38 g 6), Rome. M OPEL ANT DIADVMENIAN CAES Draped and cuirassed bust of Diadumenian to right. Rev. PRINC IVVENTVTIS Diadumenian standing front, his head turned to right, holding standard in his right hand and scepter in his left; to his right, two standards. Cohen 3. RIC 102. Good very fine.