Watch List notes:

Justinian I. 527-565. Æ half follis Nicomedia, year 21 = 547/548. DN IVSTINIANVS PP AV, helmeted and cuirassed bust facing, holding globus cruciger and shield with horseman, cross to right / Large K, ANNO to left, cross above, XXI to right, NI in exergue.
10.4g 30.5mm