All changes to tower
| Date | Change | Source |
|---|---|---|
| 15 Oct 2025 | 1: nominal added, note amended | Recorded by John Adams and analysed by Nick Bowden |
| 31 Jan 2022 | GF added | David Matthews |
| Date | Change | Source |
|---|---|---|
| 15 Oct 2025 | 1: nominal added, note amended | Recorded by John Adams and analysed by Nick Bowden |
| 31 Jan 2022 | GF added | David Matthews |