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 2694.05 Class-3 (Structural)
• MS 6002.89 Primary Register of Hypothetical Staircases
• MS 4817.34 Twenty-Third Concordance

  The Twenty-Third Concordance is the primary regulatory framework governing the classification, activation, and containment of conditional re…