Watch List notes:

Diadumenian, as Caesar, 217-218. Denarius (Silver, 20 mm, 3.08 g, 6 h), Rome, summer 217-early 218. M OPEL ANT DIADVMENIAN CAES Bare-headed, draped and cuirassed bust of Diadumenian to right. Rev. PRINC IVVENTVTIS Diadumenian standing front, head to right, holding a standard with his right hand and a scepter in his left; to right, two standards. BMC 87. Clay Issue 2. Cohen 3. RIC 102. An attractive example with a lovely portrait. Good very fine.