7 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 2543.17 Attribution Precedes Existence
• MS 7438.07 Bureau of Authentication

  The Bureau of Authentication is the principal verifying body of the Tower, charged with the formal certification of legitimacy, origin, and …

• MS 1559.50 Gap Measurement

  Gap Measurement refers to the suite of standardized practices, instruments, and units used by the Office of Discrepancy Management (ODM) to …

• MS 2729.62 Model IV Cataloguing Automaton

  The Model IV Cataloguing Automaton is the fourth sanctioned generation of the Tower's general-purpose cataloguing engine, distinguished from…

• MS 9086.16 SMP-Ξ protocol
• MS 0617.06 The Principle of Reciprocal Negation

  The Principle of Reciprocal Negation is a standing interpretive rule of the Tower holding that any proposition negated twice is restored to …

• MS 7663.13 Type-A Drift