All changes to tower
| Date | Change | Source |
|---|---|---|
| 21 Jul 2017 | frame: truss,layout added | John Greenhough via e-mail |
| 14 Nov 2014 | 1-4: turning info added | George Dawson via 00010965 |
| 11 Nov 2014 | 1-4: frame id added; frame info added | John Baldwin via database |
| 18 Apr 2005 | Tenor note amended (from C) and tenor nominal (Db-21c) added | Dave Kelly via e-mail |