Uncial 0121b (in the Gregory-Aland numbering), it was named as Fragmentum Uffenbachianum, or Codex Ruber.
The accents and notes of aspiration are carefully marked, but the iota subscriptum does not occur anywhere.
The interrogative (;) occurs once (Heb 3:7), and the inverted comma (>) is often repeated to mark quotations.
[5] The size is the same as in Uncial 0121a, the number of lines is almost the same, and characters of letters are similar, therefore they were originally described and classified as the same manuscript (f.e.
The reading of the codex is supported by 424c, 1739, mss, Peshitta, Origen, Theodore of Mopsuestia, St. Ambrose of Milan, St. Jerome, Fulgentius, Theodoret.
[9] The manuscript once belonged to Conrad von Uffenbach (hence the name Fragmentum Uffenbachianum), then to J. C. Wolf, and after his death in 1739 to the Public Library of Hamburg.