Byzantine
Justinian I (527-565) AE half follis, issued 537-8. Constantinople
Obv: DN IVSTINIANVS PP AVG; Pearl-diademed, draped and cuirassed bust right.
Rev: large K with long cross over a globe to left, star above, gamma to right, star below.
MIBE 91, EBCC 4.24, DOC -, mentioned in SB 164 listing.

Weight:7,5 gr
Diameter:19,5 mm