Former Owner
- Luigi Cora1
- L’Art Ancien1
- M. Haimmiller1
- Madyājñika Devakṛṣṇa1
- Maggs Bros Ltd1
- Malachia Ormanian1
- Manūchihr Nukhastīn Āṣaf Qājār1
- Margaret Barclay Wilson1
- Marāṭha, Raṅganātha1
- Matteo Luigi Canonici1
- Matthew Donadski1
- Maximilian Henry of Bavaria1
- Mayer Sulzberger1
- Mazliah Finzi1
- Melk Abbey1
- Michel Chasles1
- Mistrie, Sita Ram, Pandit1
- Monastery of Benevívere1
- Moritz Dessauer1
- Mrs. E.J. Hooper1