Former Owner
- Gladys Freeman1
- Godefroy Honore1
- Guglielmo Libri Carucci dalla Sommaja1
- Guilelmus Laing1
- Heinrich Eisemann1
- Hellmut Albert Feisenberger1
- Hendrik Herp1
- Henry Spelman1
- Henry Young and Sons1
- Herbert Reichner1
- Herman Cohen1
- Hermann Suchier1
- Hucks Gibbs, 1st Baron Aldenham1
- Hudson Gurney1
- Huskan-ordi (Monastery in Muradiye, Turkey)1
- J. M. C. Armbruster (Firm)1
- J. Martini1
- Jacob Henry Burn1
- Jacques Rosenthal1
- James Halliwell-Phillipps1