All changes to tower
| Date | Change | Source |
|---|---|---|
| 23 Jul 2010 | 1,3,4,5,6: turning added | John Baldwin via database |
| 1-6: frame id added; frame info added | James Clarke via e-mail | |
| 27 Apr 2009 | 1-6: nominal added | Andrew Higson via 00007368 |
| 4 Jan 2007 | No longer GF | Tim Jackson#104 via e-mail |