11 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 3167.67 Ambiguity Pruning
• MS 9404.61 Chronon Bell
• MS 1836.27 Clause 22.04.1
• MS 3477.31 Floor 450.5

  Floor 450.5 is a non-integral interstitial space, administratively categorized as a decimal flange, situated between Floor 440 the Gilded Av…

• MS 5145.87 Guild of Bench-Grinders
• MS 2201.20 Librarian Primus
• MS 9979.51 Osma of the East Archive
• MS 2774.43 School of Infinite Recursion
• MS 6983.07 Stairhead Register
• MS 5314.54 Standing Committee on Threshold Disputes
• MS 8917.83 The Registry of Foundational Claims