Watch List notes:

Diadumenian as Caesar; 217-218 AD, Rome, Denarius, 2.88g. 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. Ex NAC 62, 6 Oct. 2011, S.C. Markoff Coll., lot 2049; ex Gorny & Mosch 142, 10-11 Oct. 2005, lot 2762. . Mint State (2450)