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 0974.00 Ceremonial Ledger

  Ceremonial Ledger refers to any bound volume, folio, or codified scroll within the Tower whose physical composition, inscription medium, and…

• MS 1611.23 Office of Acoustic Integrity

  The Office of Acoustic Integrity (OAI) is a regulatory body operating under the aegis of the Bureau of Harmonic Integrity, charged with the …