All changes to tower
| Date | Change | Source |
|---|---|---|
| 20 Dec 2021 | 1-2: nominal added. | Nigel Taylor's personal tuning records via D Sloman |
| 24 Jul 2010 | Fr1: truss, layout added, material amended | James Clarke via e-mail |
| 4 Aug 2009 | 3-7: nominal added | Andrew Higson via 00007963 |
| 13 Apr 2009 | Tenor note not F; nominal inferred from T&Bs of Devon | (JGMS) via JCB |