Codex Usserianus Primus

Codex Usserianus Primus (Dublin, Trinity College Library, 55) is an early 7th-century Old Latin Gospel Book.

[4] The manuscript has a single remaining decoration, a cross outlined in black dots at the end of the Luke (fol.

The entire assemblage is contained within a triple square frame of dots and small "s" marks with crescent shaped corner motifs.

This represents the first appearance of decoration by "dotting" around text, a motif which would be important in later Insular manuscripts.

The manuscript's traditional name can be translated as "the First Book of Uss(h)er" and refers to James Ussher, Archbishop of Armagh.