Justinian I (527-565). AE Half Follis, Rome mint, 537-539 AD. D/ DN (N retrograde) IΛS (S retrograde) TIN (N retrograde) I- [ANV] S PP AV. Diademed, draped and cuirassed bust right. R/ Large K; cross potent to left, star to right; all within wreath. D.O. 325 B; M.I.B. 223; T. 383; R.-; Sear 303. g. 8.66 mm. 23.00 R. Rare and in exceptional condition for issue. From masterly engraved dies, with a superb and impressive portrait. Untouched emerald green patina. EF.