All changes to tower
| Date | Change | Source |
|---|---|---|
| 1 Jul 2022 | 7: weight amended; 1-3,6-7: diameter amended | Whitechapel records via David Sloman |
| 5 Sep 2020 | 1-8: turning added | [James Hedgcock] via 00013978 |
| 4 Sep 2020 | 1-3: canon info added | Adam McCurdy via 00013965 |
| 26 Jun 2017 | Tenor note (and ring key) not Eb (nominal: E-49c) | Bill Hibbert via pNBR |
| 30 Sep 2014 | 1-8: frameid added; frame info added | John Baldwin via database |