All changes to tower
| Date | Change | Source |
|---|---|---|
| 31 Mar 2025 | 1: nominal added | Nick Bowden analysis of Facebook video clip posted by Henry Grice |
| 28 Sep 2023 | 1: diameter added | Towers and Bells of Devon vol. 2 via Neal Dodge |
| 11 Jan 2023 | U/R added | Paul Pascoe from personal visit (2004) |