All changes to tower
| Date | Change | Source |
|---|---|---|
| 11 Dec 2018 | 1-3: diam,canons,turning,frameid added; 2: (app)wt added; | Chris Pickford via 00013206 |
| frame info added | Chris Pickford via 00013206 | |
| 3 Jan 2014 | 2: historically important | David Knight via e-mail |
| 10 Apr 2006 | Tuning & tenor nominal (C+7c) added | Nick Bowden#62 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 |