Justinian I (527–565). Follis (AE, 23.47 g, 40 mm, 6 h), Constantinople mint, RY 12 = AD 538/539. D N IVSTINIANVS P P AVC Helmeted and cuirassed bust of Justinian I facing, holding globus cruciger in his right hand and shield decorated with a cavalryman with his left; in right field, cross / Large M between ANNO and XII; above, cross; below, Γ; in exergue, CON. MIBE 95a; DOC 37c; Sear 163. Black patina. Some corrosion and deposits. Good very fine. With old collector's tag.