 The Codex Alexandrinus ( London , British Library , MS Royal 1 . D. V @-@ VIII ; Gregory @-@ Aland no . A or 02 , Soden δ 4 ) is a fifth @-@ century manuscript of the Greek Bible , containing the majority of the Septuagint and the New Testament . It is one of the four Great uncial codices . Along with the Codex Sinaiticus and the Vaticanus , it is one of the earliest and most complete manuscripts of the Bible . Brian Walton assigned Alexandrinus the capital Latin letter A in the Polyglot Bible of 1657 . This designation was maintained when the system was standardized by Wettstein in 1751 . Thus , Alexandrinus held the first position in the manuscript list . 
