All changes to tower
| Date | Change | Source |
|---|---|---|
| 17 Dec 2024 | Fr1, Fr2: layout added | Stuart Hutchieson from personal visit (2010) |
| 9 Dec 2024 | Fr1, Fr2: material amended, truss added | Stuart Hutchieson from personal visit (2010) |
| 27 May 2009 | 1-8: canon info & nominal added; 2: diam amended | Andrew Higson via 00007490 |