All changes to tower
| Date | Change | Source |
|---|---|---|
| 23 Feb 2026 | Toilet added | Cheryl Watson #009873 |
| 26 Jun 2016 | fr1,fr2: material amended; fr1: date amended | John Baldwin via database |
| 25 Jun 2016 | sct: diam added | David Sloman via 00011680 |
| 19 May 2007 | Tenor note not F#; nominal added (F-6c) | Chris Pickford (RHD / WBF info) via pNBR |