JUSTINIAN I, (527-565), AE follis, Constantinople mint, (20.05 g) issued year 15 = 541-542, officina A, obv. Justinian bust facing, DN IVSTINI ANVS PP AVC, rev. M, A below, year X/U, CON in exergue, large thin flan, (S.163, DOC.40a, BMC 56-57).
Weight: 22,3 gr Diameter: 40 mm