Watch List notes:

Macrinus, with Diadumenian as Caesar, 217-218. Denarius (Silver, 19 mm, 2.71 g, 12 h), Rome, 217. M OPEL ANT DIADVMENIAN CAES Bareheaded, draped, and cuirassed bust of Diadumenian to right. Rev. PRINC IVVENTVTIS Diadumenian standing left, holding baton and scepter; aquila and signum to right. RIC 108. RSC 14a. Lightly toned. Partially worn reverse die, otherwise, fine.

From a European Collection.