These records relate to property (now demolished) on the north side of Northampton Street, including the 'Spotted Cow' public house, the 'Spotted Cow' yard (formerly Richardson's and sometime Jemmerson's Yard), and Nos. 40 and 49 Northampton Street.
These properties never belonged to Magdalene College and the records were deposited at the Cambridgeshire Record Office in 1980. A catalogue of them can be found here:
Ref: K/886/T/1-53
https://calm.cambridgeshire.gov.uk/Record.aspx?src=CalmView.Catalog&id=K886&pos=2
A printed copy of the catalogue is available in the Magdalene College Archive.