Justinian I (527-565) AE Follis (Bronze, 19.80g, 35mm) Dated RY 20 (546/7). Constantinople
Obv: DN IVSTINIANVS PP AVG, helmeted, draped, and cuirassed bust facing, holding globus cruciger and shield decorated with soldier on horseback motif; cross to right
Rev: Large M; cross above, X/ X (date) to right, B below; in exergue CON.
Ref: Sear 163.