D(is) M(anibus) s(acrum) / M(arcus) Valerius Omuncio eq(u)e(s) Valerini fili(us) / fecit monimentum Valerini fili(i) / qui vixit menses VII
Translation:
To the sacred gods of the dead.
Marcus Valerius, son of Valerinus, trooper, built this monument for Omuncius, son of Valerinus, trooper, for the son of Valerinus, who lived seven months.