Sinaiticus -

Written between 330 and 360 CE, likely in Caesarea or Egypt. It was crafted using fine parchment made from animal skins, prepared with "lavish" expert workmanship to a paper-like thinness.

Two early Christian texts not in modern Bibles: the Epistle of Barnabas and the Shepherd of Hermas . sinaiticus

Originally contained the entire Greek Bible. Today, it includes: The complete New Testament. Substantial portions of the Old Testament (Septuagint). Written between 330 and 360 CE, likely in Caesarea or Egypt