All changes to tower
| Date | Change | Source |
|---|---|---|
| 11 Aug 2022 | Frames Fr1 and Fr1.1 added | Chris Pickford from the Christopher Dalton papers. |
| 10 Mar 2022 | Ropes added | Chris Pickford from the Christopher Dalton papers |
| 28 Feb 2022 | 1-4: turning added | Information (pictures) provided by Matthew Higby |
| 29 Dec 2021 | 1-2: weight amended; 1-4: nominal amended; 4: diameter amended | David Kelly visit via Tim Jackson |