Watch List notes:

Diadumenian as Caesar (217-218 AD). AE As. Obv. M OPEL ANTONINVS DIADVMENIANVS CAES. Draped and cuirassed bust right, head bare. Rev. PRINC IVVENTVTIS SC. Diadumenian standing front, head left, holding standard and sceptre; to right, two standards. RIC (Macr.) 212. AE. g. 9.61 mm. 26.20 VF/About VF.