Diadumenian. AE Sestertius, AD 217-218. 23.14 g.

M OPEL ANTONINVS DIADVMENIANVS COS CAES, bare-headed, draped and cuirassed bust right.
PRINC IVVENTVTIS, Diadumenian standing front, looking right, holding standard and sceptre, on right two standards. 
S-C below. 

RIC 211; BMCRE 149; Cohen 7; Banti 3.
Rare. 

With permission of Triton VIII auction, Lot: 1049. Jan 2005. 

Ex Triton II lot 967 (Dec. 1998), lot 967; ex Numismatica Ars 
Classica 10, lot 658 (April 1997); ex Spink Taisei 
52 (with Numismatica Ars Classica, Nov. 1994), lot 2263.