All changes to tower
| Date | Change | Source |
|---|---|---|
| 20 Dec 2012 | 1-5: turning added, canons added/amended; 1: wt added | Chris Pickford via 00010194 |
| 1-5: frame id added; frame info added | Chris Pickford via e-mail | |
| 1 Jul 2012 | 2,3: wt added; 1-5: diam amended | George Dawson via 00009980 |
| 17 Mar 2010 | 4: wt added | Chris Pickford via 00008549 |