All changes to tower
| Date | Change | Source |
|---|---|---|
| 12 Jul 2023 | PN amended | David Barrance, RM West Dorset Branch, SDGR. via #005341 |
| 18 Apr 2011 | 3-6: canon info added | David Sloman via e-mail |
| 1-6: frame id added; frame info added | John Baldwin via database | |
| 8 Nov 2004 | Tenor nominal added | Bill Hibbert 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 |