Ms. Written in Paris. The primary contents, written probably in the 3rd quarter of the 13th cent., are on leaves 18-505 (as foliated in modern pencil). Additional matter added closer to 1300 is on leaves 6-15 and 507-562.
Imperfect: 4 leaves of the calendar (all after Apr. 30) and 4 leaves of the Psalter (4 beginnings of liturgical divisions) wanting. These 8 leaves are not included in the modern foliation.
Schutzner, Svato. Medieval and renaissance manuscript books in the Library of Congress, 15
Ricci, S. de. Medieval and Renaissance mss., p. 229, no. 103
Ricci, S. de. Medieval and Renaissance mss. (suppl.), p. 119, no. 75
Also available in digital form on the Library of Congress Web site.