All changes to tower
| Date | Change | Source |
|---|---|---|
| 25 Jun 2010 | 1-6: turning added | John Baldwin via database |
| 12 Jun 2009 | 1-5: nominal added; 2: wt corrected; 3,6: diam amended | Andrew Higson via 00007579 |
| 9 May 2009 | PN amended (from Thu) - doors locked 20:00 | Karen Jeffrey via e-mail |