This manuscript contains the commentary of the historian Ioannes Zonaras (12th century) on the Resurrectional Canons in the Octoechos. The present volume is important as a key witness to the longer version of this text.
The Octoechos is a hymn-book used in the liturgy of Orthodox Christianity. It contains hymns arranged in eight parts corresponding to the eight musical modes.
The manuscript is also significant for its format. It is one of the earliest dated Greek manuscripts to be written on Western (i.e. non-Arabic) paper, dated in two scribal notes to the year 1252. A Byzantine-style leather binding covers the book. The British Museum acquired it in 1866.