All changes to tower
| Date | Change | Source |
|---|---|---|
| 3 Jul 2022 | Fr1: diagonal | C J Pickford |
| 14 Apr 2014 | fr1: truss added; historically important | Philip Denton via e-mail |
| 17 May 2010 | 1-5: frame id added; frame info added; 4: diam amended | John Baldwin via database |
| 5 Oct 2004 | Tenor nominal added | David Kelly via e-mail |