Diadumenian as Caesar. Denarius

Diadumenian as Caesar; 217-218 AD, Rome, ca. 217 AD, Denarius, 2.43g. RIC-105var, Cf. RD p. 122. Obv: M OPEL ANT DIADVMENIAN CAES, Bareheaded, draped, and cuirassed bust r. Rx: PRINC IVVENTIS, Diadumenian standing l., head l., holding signum and scepter; two signa to r. Ex Curtis L. Clay Collection. Ex CNG 399, June 2017, lot 591. Reverse figure looks l. instead of r.; 3 specimens of this variation exist, all with only draped obverse busts.. MS