Valerian II Caesar (253-255).     AE Antoninianus, 256-259.   Obv.    DIVO CAES VALERIANO. Radiate and draped bust right.        Rev.   CONSECRATIO. Altar.     RIC IV  24; C. 13.     4.59 g.   21.00 mm.        Superb example, virtually as struck. Reverse struck from worn die.    About FDC.