All changes to tower
| Date | Change | Source |
|---|---|---|
| 29 Nov 2014 | 2,3,4,5,6,8: diam amended | Tim Jackson via 00010993 |
| 9 Oct 2012 | fr: date confirmed as 1937 | Andrew Higson via e-mail |
| 8 Oct 2012 | 1-8: nominal, turning, frame id added; frame info added | Andrew Higson via 00010091 |