All changes to tower
| Date | Change | Source |
|---|---|---|
| 22 Apr 2022 | URL amended. | Dickon R Love |
| 4 May 2012 | 1-3: canons, turning, frame id added; frame info added | John Baldwin via database |
| 25 Mar 2006 | TowerBaseID added | Tim Jackson#90 via e-mail |
| 25 Jan 2006 | Additional tower | Nick Bowden#60 (info: CMT3s; D Love's Westminster site) via e-mail |