All changes to tower
| Date | Change | Source |
|---|---|---|
| 4 Aug 2020 | 1-6: turning added | John Baldwin via database |
| 16 Feb 2019 | fr1: truss,layout added | Tim Jackson via e-mail |
| 3 May 2016 | 1-6: frameid added; frame info added | John Baldwin via database |
| 17 Aug 2009 | Tenor note not F; nominal: F#-33c | Sam Austin via pNBR |
| 1-6: nominal added | Sam Austin via 00008045 |