Suspected alternative version of Officium sanctae crucis by St. Bonaventure. The first prayer is most of stanza 5 and all of stanza 6 of "Qui pressura mortis dura solvisti nexus." This is followed by a responsory & verse taken from the Book of Isaiah. The Antiphon is that which is still used today as the Magnificat’s Antiphon on Good Friday but does not match the antiphon for St. Bonaventure's Cursus de passione domini. The fourth prayer is his final prayer following the Magnificat which  wraps from the recto to verso. The beginning of the fifth prayer, which are the last fives lines of the verso, are attributed to Pope Innocent IV as part of his seven prayers meditating on the Seven Dolors, in the original version.