Former Owner
- Lew David Feldman1
- Libreria la Bibliofila1
- Lionardo di Paolo Adimari1
- Lorenzo Antonio da Ponte1
- Louis César de La Baume Le Blanc1
- Lucien Gougy1
- Madyan Qusuni1
- Malachia Ormanian1
- Marcus Jastrow1
- Margaret Barclay Wilson1
- Marie Cleophe de Sollario1
- Marie de Albano1
- Marienstiftsgymnasium1
- Mary Lusher1
- Mazliah Finzi1
- Medingen Abbey1
- Michael Greenberg1
- Monastero di Santo Spirito in Verona1
- Monastery at San Gregorio al Celio1
- Morell Thurston1