Justin I, AE Pentanummium, Antioch. 518-527 AD. 

Obv: DN IVSTINVS PP AVG, pearl-diademed, draped, cuirassed bust right.
Rev: Large Epsilon; N over gamma over A to right. (A Gamma N sideways upwards)

Sear Byz 110; DOC 56.

From Dane's collection, Nov. 2010.