All changes to tower
| Date | Change | Source |
|---|---|---|
| 14 Feb 2019 | Frame Fr1: date,maker,truss,layout added | Tim Jackson via e-mail |
| 19 Oct 2017 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 14 May 2013 | 2: noted as welded | Philip Denton via e-mail |
| 5 Oct 2004 | Tenor note not Bb (nominal=A+17c) | David Kelly via e-mail |