Former Owner
- Baptist Union Theological Seminary1
- Baḥrānī, Muḥammad ibn ʻAlī ibn Ḥaydar ibn Ḥasan ibn Ḥaydar1
- Beatrice de Fouar1
- Benedetto Affaticati1
- Benetto Spinelli1
- Bertram Dobell1
- Binyamin ben Salem Elark1
- Bloomsbury Auctions1
- Brian Douglas Stilwell1
- Brick Row Book Shop1
- Burndy Library1
- Buxheim Charterhouse1
- Bākīr ibn Muṣṭafá Fūṭī1
- Būtū ʻAbd al-Bāqī1
- Carl Alphons Geigy-Hagenbach1
- Carl Frederick Haussmann1
- Cecil H. Clough1
- Charles Alexander de Cosson1
- Charles Ede1
- Charles Joseph Harford1