Former Owner
- Lisa Kiser12
- Louis d'Aumont de Rochebaron1
- M. Lee1
- M. Pierre Guarin1
- Maggs Bros Ltd1
- Marcel Mirgodin1
- Martin Schøyen5
- Martin of Aragon1
- Michael Greenberg5
- Michel Guibé1
- Monastery of San Bartolmeo, Arezzo, Tuscany1
- Nancy McGrath3
- Nell Wheeler1
- Neuman-Walter1
- O. A. Bump1
- Ohio State University Center for Epigraphical and Palaeographical Studies1
- Ohio State University School of Music1
- Otto Ege71
- PBA Galleries1
- Parish Church of St. John the Baptist1