All changes to tower
| Date | Change | Source |
|---|---|---|
| 15 May 2015 | 1-3: turning added | Mike Chester via 00011160 |
| 14 Apr 2012 | 1-3: frame id added; frame info added | Mike Chester via 00009905 |
| 16 May 2010 | 2,3: diam amended; 2: founder, date amended (& NOT 'listed') | George Dawson via e-mail |
| 14 May 2010 | 1-3: nominal added; 2: wt added; 2,3: canons amended | George Dawson via e-mail |