JUSTINIAN I. 527-565 AD. Æ Follis (42mm, 23.68 gm). Nicomedia mint. Dated year 13 (539/540 AD). DN IVSTINI ANVS PP AVG, helmeted facing bust / Large M, B below, ANNO to left and X II I to right, NIK in exergue. DOC I 117b; SB 201. EF, choice green patina. Rare this nice.
