Justinian I. Decanummium, Nicomedia. 

DN IVSTINIANVS PP AVG, pearl diademed, draped, cuirassed bust right-

Large I, ANNO to left, star above, regnal year to right, mintmark NIK. 

11 regnal years known. 

SB 205, MIB 118.

Courtesy of Barry & Darling Ancient Coins, Nov. 2010.