Pt.1: Descriptions. Additional manuscripts 53,709-56,485 ; Egerton manuscripts 3,777-3,783 ; Additional charters and rolls 75,578-75,738 ; Detached seals and casts CCII.1-7
Pt. 2: Index.
The British Library catalogue of additions to the manuscripts. New series, 1966-1970. ISBN 0712345698. Published by British Library in 1998. Publication and catalogue information, links to buy online and reader comments.