Former Owner
- Karva, Lakṣmaṇabhaṭṭa1
- Kenneth X. Robbins1
- Khiste, B.N1
- Laurence William Hodson1
- Leicester Harmsworth1
- Leonard S. Unger1
- Leonardus Martinotius1
- Lionel Tollemache, 4th Earl of Dysart1
- Llewelyn Lloyd-Mostyn, 3rd Baron Mostyn of Mostyn1
- London School of Jewish Studies1
- Luigi Cora1
- L’Art Ancien1
- M. Haimmiller1
- Madyājñika Devakṛṣṇa1
- Maggs Bros Ltd1
- Malachia Ormanian1
- Manūchihr Nukhastīn Āṣaf Qājār1
- Margaret Barclay Wilson1
- Matteo Luigi Canonici1
- Mazliah Finzi1