Watch List notes:

Diadumenian as Caesar. Denarius; Diadumenian as Caesar; 217-218 AD, Rome, Denarius, 3.37g. BM-87, C-3 (15 Fr.), RIC-102. Obv: M OPEL ANT DIADVMENIAN CAES Bare-headed, draped bust r., seen from front. Rx: PRINC.IVVENTVTIS Diadumenian standing l., head r., holding standard and scepter, two further standards behind him.. VF