Watch List notes:

Justinian I Æ Half Nummus. Constantinople, Dated RY 12 = AD 538-539. D N IVSTINIANVS P P AVG, helmeted and cuirassed bust facing, holding globus cruciger and shield; cross to right / Large K; cross above, B below, ANNO to left, XII (date) to right.
11.5g 31.9mm