Justinian I (527-565). AE Follis, Cyzicus mint, dated RY 17 (543-544). Obv. Helmeted and cuirassed bust facing, holding globus cruciger and shield; to right, cross. Rev. Large M (mark of value). MIB 120; D.O. 169a.2; Sear 207. 19.23 g. 37 mm. F/VF.