All changes to tower
| Date | Change | Source |
|---|---|---|
| 24 Jul 2017 | frame: truss,layout added | John Greenhough via e-mail |
| 23 Feb 2016 | 1,2,3: canon info,frameid added; frame info added | John Greenhough via e-mail |
| 6 Aug 2006 | Tenor nominal added (Bb+6c) | Dave Kelly via e-mail |
| 17 May 2004 | Tenor wt exact not approx: JRK Lincs, Colin Turner 3's | Nick Bowden#39 (David Kelly data) via e-mail |