Floor 4,845
- Holdings shelved
- 3
- Survey
- incomplete
3 holdings are shelved on this floor. A shared floor records where volumes sit and nothing about what any of them says; these are neighbours, not relations.
- MS 6560.40 Class R (Archival)
- MS 7702.56 Spiral Stacks Central Helix
- MS 8182.06 The Provisional Annex to the Spiral Stair (Floor 333, First Annex)