D(is) M(anibus)/ M(arcus) Iulius Sabinianus miles / ex clas(se) Praetoriae Misene(n)sis / (centuria) Antoni(i) Prisci vixit annis XXX / militavit annis VIII natio(ne) Bes(s)us
Translation:
To the gods of the dead. Marcus Iulius Sabinianus, soldier of the Praetorian Fleet of Misenum, from the century of Antonius Priscus, lived 30 years, served 8 years; by birth he was a Bessus.