All changes to tower
| Date | Change | Source |
|---|---|---|
| 22 Dec 2025 | 1-3: hanging added; frame added | Chris Pickford from the Christopher Dalton papers via REMRKS565 |
| 10 Dec 2025 | 3: weight added; 1-3: nominal, note, turning added; 3: diameter amended | Nigel Taylor's personal tuning records #009623 |