All changes to tower
| Date | Change | Source |
|---|---|---|
| 30 Jan 2018 | 3-7: diam added; 8: diam amended | David Sloman via 00012712 |
| 28 Nov 2017 | 1,2: diam added | David Sloman via 00012611 |
| 13 Oct 2009 | Pr: canon info added; 1-8: frameid added; frame info added | John Baldwin via database |
| 1 Jun 2009 | Tenor note not F; nominal: F#+26c | Sam Austin via pNBR |
| 8: nominal added | Sam Austin via 00007514 |