Former Owner
- Lucien Magne1
- Ludwig Rosenthal's Antiquariaat1
- Léon Gruel1
- Léon Techener1
- Maggs Bros Ltd22
- Marcela Gabriela1
- Margaret F. Woodward1
- Marguerite de Fontenay1
- Marie Ange-Toussaint Placide de Ferron1
- Marie Cleophe de Sollario1
- Marie de Albano1
- Mariota Lyle1
- Martinus Nijhoff1
- Maurice Kann1
- Michele Cavaleri2
- Milton Fischmann25
- Minerva Kaiser1
- Monsieur de Bel Air1
- Mrs. F. W. Bartlett1
- Muriel Agnes Fry1