Bronze 20 Nummi of Justinian I
Obv: D N IVSTINIANVS P P AVG, Helmeted and cuirassed bust facing, holding globus cruciger and shield, cross to right.
Rev: Large K, cross above, A/N/N/O to left, XXX regnal year to right, Y/Z beneath.
556-557 AD. · Cyzicus mint · MIB 121