All changes to tower
| Date | Change | Source |
|---|---|---|
| 9 Feb 2025 | HCACR URL amended | Lucas Williams, HCACR Web Master |
| 24 Jan 2024 | 1,3; welded | Soundweld database |
| 15 Dec 2013 | frame: layout added | Philip Denton via e-mail |
| 7 Jan 2010 | All: canon info, frame id added; frame info added | John Baldwin via database |