'Codex Nitriensis', a palimpsest, 9th century, containing Severus, Patriarch of Antioch, Treatise against John Grammatikos, chapters I-VIII, XX-XXI (Syriac) written over parts of the Gospel of Luke (Greek) (Gregory-Aland R = Gregory-Aland 027) and Euclid, Elementa (Greek) - (TM nr 61740; LDAB id 2892)
