All changes to tower
| Date | Change | Source |
|---|---|---|
| 16 Jun 2020 | 2,3,4,6: diam amended | Chris Pickford via 00013834 |
| 30 Jul 2019 | Nominals >> ring key nearer D than E (tenor nominal: D+43c) S | JCB via pNBR |
| 30 Aug 2018 | 1-8;Sct: nominal added; frame: truss,layout added | Chris Pickford via 00013060 |
| 15 Jun 2014 | Tenor wt of 21-2-14 was before canon removal | P Denton (tower information) via e-mail |
| 1-8: canons,turning,frame id added; 7: welded; 1,7,8: wt amended; | Philip Denton via 00010777 | |
| Sct: canons,turning added; frame info added | Philip Denton via 00010777 | |
| 26 Jan 2004 | Tenor not 21cwt app | Nick Bowden#37 quoting Bull via e-mail |