All changes to tower
| Date | Change | Source |
|---|---|---|
| 5 Aug 2023 | 1-5: nominal added | Recorded by Ashley Monck and analysed by Nick Bowden |
| 10 Jul 2023 | 1-5: turning added; frame Fr1: truss added, maker, layout amended | Lewis Daniel Benfield #005328 |
| 7 Apr 2011 | 1-5: canons,frame id added; frame info added; 4: date removed | David Sloman 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 |