Justinian I (527-565). AR Half Siliqua, Ravenna mint. Obv. DN IVSTINIANVS PP A. Diademed and cuirassed bust right, wearing imperial mantle. Rev. Christogram on globe between two stars; all within wreath. Cf. D.O. 339 var. Ranieri 361 var. Sear 320 var. AR. g. 0.71 mm. 12.00 RRR. About FDC/EF. Very rare and superb. Enchanting light patina with iridescent hues.