These twelve leaves are what have survived from a large-format
gradual that was produced around 1460 in the Upper Rhine region
(probably in Basel); they contain chants for the mass, changing
according to the liturgical year. The decoration with initials and
miniatures (e.g., the birth of Christ, the entry into Jerusalem, or
the depiction of the resurrection) refer to the respective
liturgical holiday, whereas the initial for Ecce advenit dominator
dominus wrongly depicts the presentation of Jesus at the Temple.
Its decoration places this gradual in the later circle of the
so-called “Vullenhoe-group”.