All changes to tower
| Date | Change | Source |
|---|---|---|
| 23 Nov 2022 | Tuning added | Tim Jackson |
| 4 Jul 2013 | URL added | TimJ via e-mail |
| 16 Jan 2012 | fr: maker, date amended | David Sloman via e-mail |
| 30 Dec 2011 | 1: app wt, diam, canons added; 1-3: turning, frame id added; | John Baldwin via database |
| frame info added | John Baldwin via database | |
| 23 Jul 2005 | Tenor nominal added (=Ab+48c) | Nick Bowden#54 via e-mail |