All changes to tower
| Date | Change | Source |
|---|---|---|
| 19 Apr 2020 | Listing Grade changed to I (from II) | TimJ / NHLE via e-mail |
| 24 May 2018 | PN info removed (held at Dallington) | SCACR 2017-18 Report via JCB |
| 7 Oct 2013 | 1-6: canons, frame id added; frame info added | John Baldwin via database |
| 20 Aug 2009 | 1-6: nominal added; 1-5: wt, diam added | Chris Pickford via 00008065 |
| 24 May 2008 | PN info added | SCA 2007 Report via JCB |