A cartulary is a collection of loose charters (documents) copied in book form, both to make them easier to consult, and as a 'backup' in the case the originals get lost or damaged. Usually they contains records of properties and rights (rather than minor transactions), and are commonly arranged chronologically if they refer to rights, or geographically if they refer to property. This manuscript contains copies of about 36 royal and other charters granted to the Benedictine nunnery of Wilton, in Wiltshire. In the middle of this page is the word 'CIROGRAPHUM' above a copy of a charter granted by King John at Windsor. A chirograph is a charter, written out twice on a single sheet of parchment, and then cut in two with a wavy, or indented, edge (hence the word 'indenture'). This meant that each party to the agreement could have a copy, and attempts at forgery could be revealed by matching up the two irregularly shaped halves.