All changes to tower
| Date | Change | Source |
|---|---|---|
| 15 Oct 2017 | frame: truss added | David Sloman via e-mail |
| 8 Sep 2017 | 1-3:frameid added; frame info added | John Greenhough via e-mail |
| 25 Jan 2011 | 3: date added | David Sloman via 00009095 |
| 2 Dec 2003 | Additional tower | John Cater via e-mail |