All changes to tower
| Date | Change | Source |
|---|---|---|
| 21 Aug 2023 | 1: founder and date amended | Chris Pickford |
| 11 Mar 2022 | Note added; 1: weight amended; 1-2: nominal, canons, turning, hanging type added; 1: note amended; 2: note added | CJP visit data via Chris Pickford |