All changes to tower
| Date | Change | Source |
|---|---|---|
| 11 Aug 2020 | fr1: material amended,truss,layout added | Tim Jackson via e-mail |
| 4 Nov 2016 | f1: material amended | David Sloman via e-mail |
| 2 Nov 2016 | 1-5: frameid added; frame info added | John Baldwin via database |
| 20 Nov 2012 | URL added | Tower website via www |
| 23 Feb 2012 | 2,3: historically important | David Knight via e-mail |