All changes to tower
| Date | Change | Source |
|---|---|---|
| 17 Jul 2017 | frame info added | David Sloman via e-mail |
| 3 Apr 2007 | Despite "correction", tenor NOT 6-0-7; nominal added: Bb-6c | Andrew Higson via pNBR |
| 15 Dec 2005 | Tenor not 6-0-17 | George Dawson (S'well spreadsheet reconciliation) via e-mail |