All changes to tower
| Date | Change | Source |
|---|---|---|
| 20 Oct 2018 | frame: date,truss,layout added | Mike Chester via e-mail |
| 14 Nov 2016 | Tenor note amended to match pNBR and tuning description | TimJ via pNBR |
| 26 Oct 2016 | 1-3: frameid added; frame info added | David Sloman via e-mail |
| 6 Mar 2007 | Tuning description added (from nominals) | Nick Bowden via pNBR |
| 3 Mar 2007 | Tenor note added (nominal: C-50c) | George Dawson via pNBR |