All changes to tower
| Date | Change | Source |
|---|---|---|
| 28 Oct 2019 | frame: material amended,truss added | Tim Jackson via e-mail |
| 11 Mar 2016 | 1-4: frameid added; frame info added | David Sloman via e-mail |
| 18 Sep 2009 | Bells are unringable | Philip Denton (PDG report) via e-mail |