Byzantine Empire. Justinian I. A.D. 527-565. AE 16 Nummi. Thessalonica. 
Obverse: D N IVSTINIANVS PP AVG. Diademed,
 draped and cuirassed bust r. 
Reverse: Large I; dot- cross-dot above; to l., A; to r., SP; in exergue, TES. Sear 176.

Courtesy of stoa.org, album 287, Nov, 2010.