Justinian I (527-565). AE Follis. Nicomedia mint, 1st officina. Dated RY 30 (556/7 AD). D/ Helmeted and cuirassed bust facing, holding globus cruciger in right hand and shield decorated with horseman motif in left; cross to right. R/ Large M; cross above, A/N/N/O X/X/X across field;below, A; in exergue, NIKO. D.O. 136 a; MIBE 113a; Sear 201. AE. g. 15.60 mm. 33.00 Green patina with earthen deposits. Good VF.