Justinian I AE Decanummium, 2.31 grams, 14.12 mm. Nicomedia. 
527-565 AD.

Obverse: DN IVSTINIANVS PP AVG, pearl-diademed, draped and cuirassed bust right.  

Reverse: no legend, Large I, ANNO to left, cross above, regnal year XXX to right, mintmark NIK in exergue.  

Sear Byz. 205; MIB 118.

Courtesy of TimeLine Originals (www.time-lines.co.uk), May, 2010