| Date | Change | Source |
|---|
| 7 Apr 2017 | 4: nominal added,wt amended | Chris Pickford via 00012063 |
| 22 Mar 2014 | 4: diam amended | Neil Skelton via e-mail |
| 21 Mar 2014 | 4: wt,date,founder,canons amended; 5,6: canons amended | George Dawson via e-mail |
| 20 Mar 2014 | 1,2,3,5: diam added; 6: diam amended; 1-6: canons added; | George Dawson via 00010677 |
| 4: wt,date,founder,canons amended | George Dawson via 00010677 |
| 19 Mar 2014 | Tenor note amended [from A; nominal = 2*strike note value] | Tim Jackson via pNBR |
| 1,2: wt amended; 3,4,5: wt added; 6 nom'l added; frame info added | Tim Jackson via 00010676 |
| 16 Feb 2012 | 5: historically important | David Knight via e-mail |
| 25 Jan 2004 | URL changed | Gary J Sheppard: SDGR webmaster via e-mail |
| 8 Jan 2004 | URL added | Gary J Sheppard: SDGR webmaster via e-mail |