All changes to tower
| Date | Change | Source |
|---|---|---|
| 13 Nov 2017 | 1,3,4,5,6: turning added; frame: truss,layout added | Matthew Higby via 00012560 |
| 22 Nov 2011 | 2: turning added; 1-6: frameid added; frame info added | John Baldwin via database |
| 5 Oct 2004 | Tenor note not G# (nominal=G+40c) | David Kelly via e-mail |