Justinian I, CE 527-565

AE follis

Nikomedia mint, struck regnal year XVIII

Obv:  DN IVSTINIANVS PP AVG, helmeted, cuirassed bust facing, holding cross on globe and shield with horseman motif, cross to right

Rev:  Large M, ANNO to left, cross above, XVIII (regnal year) to right, B (officina letter) below, mintmark NIKO

Ref: SB 201; MIB 112-115. 45