All changes to tower
| Date | Change | Source |
|---|---|---|
| 12 Sep 2024 | 3: canons amended | Jack Pease; re-evaluation of previously submitted material |
| 4 Sep 2024 | 1-8: nominal, turning added | Jack Pease, from personal visit. Recorded and analysed by Jack Pease |
| 14 Aug 2024 | 1-8: canons added | Jack Pease, from personal visit. Additional information taken from the Christopher Dalton papers |
| 3 Aug 2024 | Fr 1 added. | Jack Pease visit, Christopher Dalton papers. |
| 23 May 2018 | 1-7: diam added; 8: diam amended | David Sloman via 00012868 |
| 23 Aug 2010 | 6: founder added | Chris Pickford via 00008787 |
| 22 Aug 2010 | 1-7: wt added; 1,2: date, founder added | Philip Denton via 00008785 |
| 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 |