Former Owner
- Josiah H. Benton1
- Juan de Aillon1
- Juan de Torquemada1
- Judith Lady Montefiore College3
- Jules Bonhomme1
- Julie de Busnel1
- Julius Hess1
- Julius de Cardelinis1
- Justin MacCarthy Reagh1
- K-L1
- Karen L. Gould19
- Karl F. Morrison1
- Karl Theodor Völcker's Verlag Und Antiquariat3
- Kartause Erfurt2
- Katharinenkirche, Nuremberg1
- Katherine Somerset Wyttenbach Fenwick5
- Katholieke Universiteit te Leuven Universiteitsbibliotheek1
- Keifer1
- Keith Jarvis3
- Kenneth Hyde1