Justinian I (527-565) AE Half Follis (Bronze, 10.79g, 29mm) Cyzicus, Dated RY 15 (541/2).
Obv: Helmeted, diademed, and cuirassed bust facing, holding globus cruciger and shield
Rev: Large K, cross above; A/N/N/O XU (date) across fields; VZ below
Ref: Sear 208