All changes to tower
| Date | Change | Source |
|---|---|---|
| 16 Nov 2021 | 1-6: turning added | Christopher Woodcock via Email |
| 6 Mar 2020 | PN info amended S | Christopher Woodcock via e-mail |
| 4 May 2018 | PN info (alt Thu, with Wellingore) removed | Paul Jackman via e-mail |
| 18 Nov 2016 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 8 Jun 2009 | 6: date corrected | Chris Pickford via e-mail |
| 16 Jan 2009 | PN is not Wed but alt Thu (with Wellingore) | Paul Jackman via e-mail |