Justinian I (527-565). AE Decanummium, Rome mint. D/ DN IVS[TIN]IANVS P. Diademed, draped and cuirassed bust right. R/ Large I surmounted by cross, between two stars; beneath, ROMA; all within wreath. B.N. 20. MIB 225. D.O.-. Sear 306. R.-. AE. g. 3.91 mm. 18.00 RR. Very rare. Perfectly centred and in excellent condition for the issue. Brown patina. VF/Good VF.