Justinian I (527-565) AE Follis (Bronze, 17.31g, 33m). Nicomedia, Year 29 (555/6).
Obv: Diademed, helmeted, and cuirassed facing bust, holding globus cruciger and shield; cross to right
Rev: Large M; cross above; A/N/N/O X/X/u/II/II across fields; A//NIKO.
Ref: Sear 201.