Byzantine
Justinian I (527-565 AD). Constantinople. Dated RY 12 (538/39 AD)
AE Follis (28mm 11.27g)
Obv: DN IVSTINIANVS PP AVG, Helmeted and cuirassed bust facing, holding globus cruciger and shield decorated with horseman motif; cross to right.
Rev: Large K, ANNO to left, cross above, XII to right, Δ below.
DOC 62; Sear 165.