All changes to tower
| Date | Change | Source |
|---|---|---|
| 20 Feb 2022 | 1: diameter added | Gillett records, 1938. via Chris Pickford |
| 9 Jun 2015 | Change of PN info (new band in training) | Tim Hollinghurst (Tower Capt) via e-mail |
| 31 Aug 2011 | Ring key is nearer Bb than A; tenor nominal: Bb-33c | Philip Denton via pNBR |
| 1-6: nominal, canons, frame id added | Philip Denton via 00009651 | |
| frame info added; 6: founder, date amended; 2-6 turning added | John Baldwin via database |