Justinian I (527-565) AE Follis (Bronze, 18.24g, 34mm) Constantinople, RY 22 (548/9).
Obv: D N IVSTINIANVS P P AVG. Helmeted, draped and cuirassed bust facing, holding globus cruciger and shield decorated with horseman motif; cross to right.
Rev: Large M; A/N/N/O - X/X/II across field, cross above, B below; CON. Ref: Sear 163.