Watch List notes:

Diadumenian as Caesar. Denarius; Diadumenian as Caesar; 217-218 AD, Rome, 217 AD, Denarius, 3.08g. RIC-107=112. Obv: M OPEL DIADVMENIANVS CAES Bust draped r., head bare. Rx: PRINCIPI IVVENTVTIS Diadumenian standing l. holding baton and scepter, two standards behind him. Diadumenian's rare earliest denarius, before he assumed Caracalla's name Antoninus; only three specimens in Reka Devnia hoard.. EF