Former Owner
- Bernard Quaritch Ltd10
- Bernard Rosenthal1
- Bernardi1
- Bertram Ashburnham, 4th Earl of Ashburnham9
- Bet din tsedeḳ London ṿeha-medinah1
- Beverly Chew1
- Biblioteca civica di Verona1
- Biblioteca del Seminario Arcivescovile1
- Bloomsbury Auctions4
- Brick Row Book Shop1
- Bruce P. Ferrini1
- Buxheim Charterhouse1
- Carleton Rubira Richmond1
- Carlo Archinto, 2nd Marquess of Parona, 3rd Count of Trainate1
- Carlo Bonaparte1
- Carlo Morbio1
- Cecil Deedes1
- Charles Alexander de Cosson1
- Charles Archibald Stonehill1
- Charles B. Hoyt1