Former Owner
- 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
- Kenneth J. "Bud" Jennings2
- Klaus Dieter Dahmen1
- Kloster Bredelar1
- Kloster Rebdorf1
- Konrad von Maurer1
- Kulturhistorisches Museum Magdeburg1