P-G (Guimarães) Arquivo Municipal Alfredo Pimenta N 038
The analysis of the contents of the fragment make it possible to surmise that it was originally a central bifolium. The fragment contains some liturgical feasts that clearly point to an Aquitanian liturgical tradition, see for example
Lautenus ab. Maximiac. on fol. Av (2 November, this is a saint found mainly in manuscripts from Cluny); Leonardus disc. s. Remigii on fol. Br (Leonard of Limoges, 6 November); Valentinus & Hilarius mm. Viterb. (3 November); Florus, Episcopus Lugdunensis on fol. Bv (Florus of Lyon, 4 November); Austremonius ep. Arvern. (Bishop, Martyr, Apostle of Auvergne, 7 November). Further info on manuscripts containing the same liturgical feasts can be found in the database 'Calendrier' at http://calendriers.irht.cnrs.fr/calscope.htm.
Later hand inscriptions on fol. Ar that makes the reading of the musical contents very challenging. Other later-hand inscriptions (now almost completely disappeared) can be found on the left side of fol. Bv.