4 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 8290.91 Calibrated Lumen Prism

  The Calibrated Lumen Prism is a certified optical standard, designated Class Alpha-Refractive, used for the verification of translucency in …

• MS 1856.43 Floor 14,341
• MS 1059.07 Linear Trace
• MS 3546.11 The Rival Concordance

  The Rival Concordance is the colloquial designation for the formal document officially recorded as The Second Concordance, distinguished by …