All changes to tower
| Date | Change | Source |
|---|---|---|
| 13 Jun 2020 | 1-3: frameid added; fr1: details added | Tim Jackson via e-mail |
| 7 Jul 2004 | st line & tuning info added | Tim Jackson#65 (tuning info ex Dave Kelly) via e-mail |
| 10 Jun 2004 | Tenor note and nominal supplied | Dave Kelly via e-mail |