| Jan 26, 2017 | Christie's | New York | Old Master Prints | 173 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish Physician |
| Apr 29, 2014 | Swann Galleries | New York | Old Master Through Modern Prints | 143 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish Physician |
| Mar 18, 2014 | Sotheby's | London | Now Prints & Multiples | 37 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish Physician (B., Holl. 278; New Holl. 237; H. 226) |
| Dec 6, 2012 | Christie's | London | Old Master Prints | 50 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish Physician (B, Holl 278; H 226) |
| Mar 29, 2012 | Sotheby's | London | Old Master, Modern & Contemporary Prints | 34 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish Physician (B., Holl. 278; H. 226; Bb. 47-A) |
| Sep 27, 2011 | Sotheby's | London | Old Master, Modern and Contemporary Prints | 39 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish Physician (B., Holl. 278; H. 226; Bb. 47-A) |
| Jul 7, 2011 | Christie's | London | Old Master Prints | 72 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish Physician (B., Holl. 278; H. 226) |
| Mar 30, 2011 | Sotheby's | London | Old Master, Modern and Contemporary Prints | 39 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish Physician (B., Holl. 278; H. 266; Bb. 47-A) |
| Dec 7, 2010 | Christie's | London | Old Master Prints | 39 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish Physician (B., Holl. 278; H. 226) |
| Sep 15, 2010 | Christie's | London | Old Master, Modern & Contemporary Prints | 13 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish Physician (B, Holl 278; H 226) |
| Mar 30, 2010 | Sotheby's | London | Old Master, Modern & Contemporary Prints | 56 | $****** - ****** | | Very Good | Ephraim Bonus (B., Holl. 278; H. 226; Bb. 47-A) |
| Mar 28, 2006 | Sotheby's | London | Old Master, Modern & Contemporary Prints | 76 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish physician |
| May 27, 2005 | Hauswedell & Nolte | Hamburg | Old Masters | 124 | $****** - ****** | | Very Good | Ephraim Bonus, Doctor |
| Dec 4, 2003 | Sotheby's | London | Old Master, Modern & Contemporary Prints | 91 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish physician |
| Dec 6, 2000 | Sotheby's | London | Prints | 46 | $****** - ****** | | Very Good | Ephraim Bonus, Jewish physician |