All changes to tower
| Date | Change | Source |
|---|---|---|
| 6 Mar 2021 | 1-8: nominal, frame no added; 3,5-8: diameter amended | Nigel Taylor personal tuning records |
| 17 Feb 2021 | 8: nominal added; 8: diameter amended and key changed from Ab to A; 1-8: canons, turning added S | WBF records via Richard Offen |
| 8 Jun 2009 | 1-8: diam added (from 1931 M&S tower notice) | Philip Denton via 00007537 |