Chartulary produced in Scotland for the use of the Tironensian Abbey of Kelso, founded at Selkirk in circa 1113, removed to Kelso in 1128, and dissolved in 1607. The contents are generally arranged topographically. Copies of the foundation charters are found at the beginning. The other royal, episcopal and papal charters are mainly grouped at the end. Witness lists are often omitted from the documents. The manuscript is multi-scribal and displays various charter hands of the 14th and 15th centuries.

There are over 430 documents present in the manuscript. Broun notes that at least 49, and possibly as many as 59, are datable to before 1165, and that around 20 are from the reign of David I. For a detailed discussion of the documents present in the manuscript see the works by Shead and Smith.

Davis has dated the manuscript to after 1316, whilst Smith has suggested a date of between 1321 and 1326 for the date of production. The material in the manuscript covers the 12th to the 14th centuries, with some later 15th-century interpolations.

Folios i-iv are liturgical fragments which have been re-used as flyleaves. Folios iii and iv have later annotations on both the recto and verso sides. The contents thereafter are as follows:

The 'rotulus reddituum’, a notice of all the property of the monastery, written in a late 13th-century hand. Folios 1r-7v.

The 14th-century chartulary proper. Foundation charters followed by royal charters and then other charter arranged mostly topographically. Folios 8r to 171r.

A series of additions and interpolations, mostly of later medieval charters, but also occasionally of earlier material. Notable entries include an incomplete entry entitled 'Reformatio pacis Inter regna Anglie et Scotie' (folio 171v), and one entitled 'her begynys a nobyl tretyse made of a gud phesician John of Burdouse for medicene agayns ye pestilens iwyll' (folios 213v-215r). Folios 171v to 219v.

Folios 8r-164v are decorated with red initials, occasionally with green penwork ornamentation. Guide letters for decoration are visible in the margins. Rubrics are in red and letters are stroked with red throughout. Folios 164v-165v are decorated with green initials but there is no rubrication. There is no further decoration in the manuscript past this point, except for plain penwork initials.

On folios 86-170v each folio has been lined and ruled recto and verso in a uniform manner. A section has been lined only from folios 172r-193v, thereafter the lining and ruling is inconsistent.

Pricking is evident for the horizontal lines on folios 1-159, but not visible thereafter.

Horizontal catchwords are present on the following folios: 19v, 31v, 43v, 55v, 67v, 79v, 91(a)v, 100v, 112v, 124v, 135v, 147v.

Quire signatures in the form of lower case letters are present in the upper corner of the following folios: 20r, 32r, 44r, 56r, 68r, 91(b)r, 101r, 113r, 136r, 148r.

Contemporary and modern repairs to the vellum are visible throughout. Leaves at the beginning and end of the volume are badly stained and are almost illegible in places.

The foliation is probably of the 17th century and is continued from folio 211 onwards by a modern Library foliation.

The manuscript is damaged towards the end of the volume from damp and dirt which has rendered some text dificult to read.