Watch List notes:

Justinian I. 527-565. AE pentanummium (14.4 mm, 1.86 g, 7 h). Constantinople mint. D N IVSTINIA-NVS PP AVG, diademed, draped and cuirassed bust of Justinian I right / Large Є; to right, +. SBCV 172; DOC 97; . VF, full-flan, well struck, green patina.

Ex Leo Hamburger 1890's.

This coin comes from a large group of Roman Provincial, Byzantine and Vandalic coins which were part of Leopold Hamburger's inventory. More information on Mr. Hamburger can be found here:https://www.coinbooks.org/v20/esylum_v20n42a19.html