Former Owner
- Bet din tsedeḳ London ṿeha-medinah1
- Beverly Chew1
- Bill Jackson1
- Bodleian Library1
- Brick Row Book Shop1
- Bruce P. Ferrini1
- Budapest University of Jewish Studies1
- Camillo Riccio1
- Carleton Rubira Richmond1
- Carlo Bonaparte1
- Carlo Francesco Frasconi1
- Cecil Deedes1
- Charles B. Hoyt1
- Charles Burr1
- Charles Butler1
- Charles Sauvageot1
- Cini Johan de Barisani1
- Clarence S. Bement1
- Clemente Carilli1
- Coluccio Salutati1