Former Owner
- Anthelme-Michel-Laurent de Migieu, marquis de Savigny1
- Antonio Medin1
- Antonio di Matteo di Giovanni Foresi da Bibbiena1
- Archibald Primrose, 5th Earl of Rosebery1
- Ariel Toaff1
- Arnold Mettler1
- Art ancien S.A.1
- Arthur Brölemann1
- Arthur Liddell, 5th Baron Ravensworth1
- Asahel Grant1
- Auchinleck Community Library1
- August Merz1
- Augustinus de Cagnolis1
- Avraham Ḥai Morpurgo1
- Aḥmad ibn Mubārak Luṭf Allāh1
- Aḥmad ibn Muṣṭafá1
- B.S. Cron1
- Baldassarre Boncompagni2
- Baptist Union Theological Seminary1
- Bartolomeo di Larione Martelli1