All changes to tower
| Date | Change | Source |
|---|---|---|
| 17 Nov 2016 | Tenor and ring keynote not A (nominal: B+20c) | Dave Kelly tonal analysis via pNBR |
| 1-3: nominal,canon info,turning added; frame: material added | David Kelly via 00011852 | |
| 24 Aug 2011 | 1-3: frame id added; frame info added | Sam Austin via 00009622 |
| 27 Dec 2004 | TowerBase ID added | Tim Jackson#75 via e-mail |
| 20 Dec 2004 | Additional tower (to become 6 in due course: RW2004/p148) | Tim Jackson#74 (tenor wt ex Colin Turner) via e-mail |