All changes to tower
| Date | Change | Source |
|---|---|---|
| 9 Jun 2024 | Overhaul added; Fr1: truss, layout, note, mod added | Jack Pease, citing B&B Dorset, Dalton |
| 18 Mar 2011 | 2,4,5: canon info amended; 2: diam amended | David Sloman via e-mail |
| 1-5: frame id added; frame info added | John Baldwin via database | |
| 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 |