(Northern France[?], ca. 1100). 298 x 248 mm. (11 3/4 x 9 3/4"). Double column, 30 lines, in an upright Caroline minuscule.

Rubrics in red, seven one- or two-line rustic initials in red or green; small, primitive neumes written above seven lines of text. Pricking along one edge. Recovered from a binding and so with general (though not severe) wrinkling and soiling, top line just slightly trimmed, a half dozen small marginal holes without loss, other minor defects, but still quite a pleasing leaf without any major condition problems, and, in all, an excellent specimen of an early hand and primitive musical notation.

The text here is distinguished by a pronounced sloping (or "fishtails") at the top of ascenders and by the presence of an early form of musical notation, or neumes. The neumes here are described as "in campo aperto," which means literally "in an open field," because they and they alone occupy the space (or "field") above the text. These are diastematic neumes, the second generation in musical notation (following adiastematic neumes), meaning that they reflect changes in pitch by being placed in a higher or lower vertical position above the text, though still standing alone, without horizontal lines that were added later and that evolved into the modern staff notation. Diastematic neumes appeared in at least a tentative form in the late 10th century. The musical notation and the scribal hand here are very similar to Corbin's II, 23-25, which is Ms. 404 at the Bibliothèque Mazarine, an early 12th century Missal done in Bayeux. Our leaf includes the Gospel of Matthew 7:15-21 ("Beware false prophets") and Matthew 16:1-12, warning the disciples against the doctrine of the Pharisees and Sadducees.