All changes to tower
| Date | Change | Source |
|---|---|---|
| 30 Jul 2018 | Clk: canons,turning added | David Sloman via 00013008 |
| 22 Apr 2012 | PN info amended (from Fri) | Colin Chapman via e-mail |
| 24 Sep 2011 | 1-8: turning, frame id added; 1,2: diam added; frame info added | David Sloman via 00009696 |
| 3-8: diam amended, canon info added; clk: frame id added | David Sloman via 00009696 |