A complete folio leaf (452 x 330 mm (text area 330 x 225 mm)) with double columns of 29 lines written in two sizes of a fine formal gothic liturgical script in dark brown ink, ruled lightly in ink, very large nine-line initial ‘A’ (Ad te levavi) on recto formed of knotted and intertwining acanthus in blue and pale green against a burnished gold ground, framed by a mauve square edged in green and enclosing delicate scrollwork in shell gold, marginal extensions leading into a highly elaborate full-page border of dense ivyleaf decoration, sprays of acanthus and clusters of interlace, incorporating four angels (two singing from a shared choirbook, one playing a harp, and one bearing a coat of arms) and twelve animals or mythical beasts including a doe, a lion, a unicorn, two dragons, a pelican, a dog wearing a collar, and a bird of prey), all painted in shades of pale green, blue, orange, pink, brown, white and black, two-line illuminated initial ‘F’ (Fratres scientes quia hora est) of leafy design in shades of pale green, mauve, orange and blue and with delicate penwork in shell gold, smaller initials in burnished gold, blue or red with contrasting penwork (two-line initial ‘D’ on verso incorporating a human face), lesser initials alternately in red and blue, capitals touched in red, paragraph mark in red, rubrics; very rubbed and soiled, central horizontal and vertical creases where once folded, two large stains on verso showing through to recto.