All changes to tower
| Date | Change | Source |
|---|---|---|
| 7 Oct 2024 | Frame Fr1: material, truss, layout added | Jack Pease from the Christopher Dalton papers |
| 21 Jun 2017 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 4 Jan 2014 | All: historically important | David Knight via e-mail |
| 8 Apr 2009 | 1-6: nominal & canons; 1: diam correction | Andrew Higson via 00007248 |
| 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 |