All changes to tower
| Date | Change | Source |
|---|---|---|
| 31 May 2019 | 1-6: frameid,turning,canons added; frame info added | John Baldwin via database |
| 28 Aug 2018 | 1,2,6: diam added; 3,4,5: diam amended | David Sloman via 00013047 |
| 25 Sep 2004 | Slight change to dedication to match Crockford entry | Graham Nabb check via e-mail |