Watch List notes:

Diadumenian, as Caesar, 217-218. Denarius (Silver, 20 mm, 3.81 g, 6 h), Rome, late July 217 - end February 218. M OPEL ANT DIADVMENIAN CAES Bareheaded, draped and cuirassed bust of Diadumenian to right. Rev. PRINC IVVENTVTIS Diadumenian standing left, holding baton in his right hand and spear in left; to right, two standards. BMC 84. Cohen 14. RIC 107. Very fine.