All changes to tower
| Date | Change | Source |
|---|---|---|
| 30 Nov 2023 | Fr1: year, materials, truss, layout added | Chris Pickford via Frame Backlog |
| 7 Jan 2022 | 3: nominal amended, key and tuning description | C J Pickford |
| 5 Dec 2021 | 1-3: approx weights, nominal, canons, turning, hanging type, frame IDs added; 2: approx. cast year added. | C J Pickford, inspection 26 Nov 2021 |