All changes to tower
| Date | Change | Source |
|---|---|---|
| 17 Aug 2022 | Frames Fr1, Fr2: layout added | Ranald Clouston papers 2000 via Neal Dodge |
| 2 Sep 2018 | chiming: bell added; all: frameid added; frame info added | Tim Jackson via e-mail |
| 13 Apr 2013 | 2-6: turning added; 3,5,6: canon info added; 3,6: founder added; | Dennis Greenwood via 00010351 |
| 3: date, historically important added; 5: founder, date amended | Dennis Greenwood via 00010351 | |
| 23 Feb 2004 | Tenor weight is precise not approx | Tim Jackson#59 via e-mail |