Justinian I (527-565).     AE Half Follis. Rome mint. Struck 540-542 AD.   Obv.    D N IVST[INIANVS P P AV]. Diademed, draped, and cuirassed bust right.        Rev.   Large K; flanked by star and cross; all within wreath.     D.O. 325a; MIB 222; Sear 301.     8.23 g.   22 mm.        Minor smoothing on obverse. Attractive dark patina.    About EF/VF.