All changes to tower
| Date | Change | Source |
|---|---|---|
| 31 Dec 2011 | 3: date amended | Keith Prime via 00009825 |
| 21 Nov 2011 | 1,2: date amended; fr1: truss, layout added | Andrew Higson via 00009766 |
| 17 Nov 2011 | 5: founder amended; 1-6: frame id added; frame info added | John Baldwin via database |
| 30 Apr 2009 | 1-6: nominal added; 2,3,5,6: canon info added | Andrew Higson via 00007386 |