Former Owner
- Bernardo Mendel1
- Bertram Dobell1
- Bertrand de Chalençon1
- Betty Freudenheim1
- Biblioteka Tulezynska1
- Bill Jackson1
- Bill McGrath1
- Bloomsbury Auctions1
- Bodleian Library1
- Boies Penrose II1
- Brick Row Book Shop1
- Bridget Hunt1
- Bruce Bannerman1
- Burg Kreuzenstein1
- Burgersdijk & Niermans1
- Burndy Library1
- C.B1
- Caesareum Societatis Jesu Collegium Viennense1
- Camillo Riccio1
- Carleton Rubira Richmond1