All changes to tower
| Date | Change | Source |
|---|---|---|
| 1 Aug 2017 | 1-3: frameid added; frame info added | David Sloman via e-mail |
| 11 Nov 2005 | Tenor exact wt (not 4cwt) supplied | Nick Bowden#57 (info ex Colin Turner 3s) via e-mail |
| 5 Oct 2003 | Additional tower | Alan Birney via e-mail |