Justinian I, AE Decanummium, Rome. 527-565 AD. 

DN IVSTINIANVS P AVG, helmeted and cuirassed bust facing,
holding cross on globe and shield.

Large I, star to left, star to right, all within wreath.

SB308, MIB 228

Courtesy of Tom Cederlind, Auction 155, lot no. 352
Added in Nov. 2010