Byzantine
Justinian I the Great (527-565 AD) Constantinople
AE Follis or nummi (39.5mm, 22.7g)
Obv: D N IVSTINI-ANVS PP AVG, helmeted, cuirassed bust of Justinian I facing, globus cruciger in right hand, shield decorated with horseman motif in left; cross in right field.
Rev: Large M (mark of value); A/N/N/O to left, X/u (date) to right, cross above, Γ (officina) below; CON in exergue.
Sear 163.