Former Owner
- Bhālacandra Gaṇeśa1
- Bibliotheca Philosophica Hermetica1
- Binyamin ben Salem Elark1
- Boies Penrose II1
- Bonvesino, Marco1
- Brahmānaṃdatīrtha1
- Bridget Hunt1
- Brinton, Daniel G. 1837-18991
- Bristol Baptist College1
- Budapest University of Jewish Studies1
- Burg Kreuzenstein1
- Bākīr ibn Muṣṭafá Fūṭī1
- Bālambhaṭṭamuni1
- Bāpaṭa Kṛṣṇabhaṭa1
- Bīkānera Anūpa Saṃskr̥ta Pustakālaya1
- Camillo Riccio1
- Carl Alphons Geigy-Hagenbach1
- Carl Frederick Haussmann1
- Carleton Rubira Richmond1
- Carlo Archinto, 2nd Marquess of Parona, 3rd Count of Trainate1