Justinian I (527-565). AE Decanummium, Ravenna mint, 540-547 AD. Obv. DN IVSTINIANVS P [ ]. Diademed, draped and cuirassed bust right. Rev. Large cross, with star in each angle; all within wreath. M.I.B. 237. Ranieri 381. D.O. 364 (uncertain). Sear 333 (uncertain). AE. g. 3.10 mm. 18.00 RRR. Extremely rare and in excellent condition for the issue. Superb emerald-green patina. Good VF.