All changes to tower
| Date | Change | Source |
|---|---|---|
| 21 Oct 2022 | Frame Fr1 added | Stuart Hutchieson from personal visit |
| 21 Feb 2009 | Unspecified edit | |
| 12 May 2006 | D# confirmed as tenor note | John Allen via e-mail |
| 4 May 2006 | Note removed: F & D# both suggested (needs noml measurement) | John Allen; Andy Marchant via e-mail |