BYZANTINE EMPIRE. Justinian I. AD. 527-565. Æ Follis (21.98 gm; 40 mm). Constantinople, 2nd officina, 539/40 (regnal year. 13). D N IVSTINI – ANVS P P AVG Helmeted, pearl- diademed and cuirassed bust facing, holding globus cruciger and shield with horseman and enemy motif; in right field, cross / Large M between ANNO and XIII. DOC 38b; MIB 95a; Sear 163. Well struck on a nice broad flan. Brown patina. Choice EF.