Diadumenian, as Caesar, 217-218. Antoninianus (Silver, 23 mm, 5.16 g, 7 h), Rome, April-May 217. M OPEL DIADVMENIANVS CAES Radiate and draped bust of Diadumenian to right, seen from behind. Rev. PRINC IVVENTVTIS Diadumenian, as prince of the youth, standing left in military attire, holding baton in his right hand and scepter with his left; behind him, two signa. BMC 82. Clay Issue 1. Cohen 11. RIC 106. Very rare. A beautifully toned and sharply struck piece. Extremely fine.
Ex Aureo & Calicó, Imagines Imperatorum, 15 February 2012, 185 and Classical Numismatic Group 36, 6 December 1995, 2443.