2 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 2782.39 Floor 5017

  Floor 5017 is a lost-property and restitution floor situated between Floor 4001 and Floor 9,011, at a height that the survey parties of the …

• MS 4425.33 Spiral of Iterant Thresholds