Justinian I (527-565) AE Follis (Bronze, 22.21g, 39mm) Constantinople, RY 15 (541/2).
Obv: D N IVSTINIANVS P P AVG, diademed, helmeted, and cuirassed facing bust, holding globus cruciger and shield; cross to right
Rev: Large M; cross above, ANNO X/U across field, A/CON. DOC I 40a;
Ref: Sear 163.