Former Owner
- Giuseppe Martini10
- Henry Charles Lea10
- Albert C. Baugh9
- Maggs Bros Ltd8
- Henry Probasco7
- Paul Riant7
- Walter Sneyd7
- Guglielmo Libri Carucci dalla Sommaja6
- H. P. Kraus (firm)6
- Imre De Vegh6
- Johann Heinrich van Ess6
- Judith Lady Montefiore College6
- Katherine Somerset Wyttenbach Fenwick6
- Prince Sadruddin Aga Khan6
- Richard Heber6
- Solomon Joachim Halberstam6
- Thomas FitzRoy Phillipps Fenwick6
- Alfred Henry Huth5
- George Dunn5
- Harrison Horblit5