All changes to tower
| Date | Change | Source |
|---|---|---|
| 3 Mar 2011 | 1-6: turning, frame id added; frame info added | Andrew Higson via 00009170 |
| 3 Apr 2009 | Nominal added: 1-5; diam changed: 1-4,6 | Andrew Higson via 00007232 |
| 1 Apr 2009 | Mon PN now 1 & 3 (not just 1st): shared with Norton Disney | Stan Underwood via e-mail |
| 13 Feb 2006 | Mon PN is not weekly | Chris Woodcock via e-mail |
| 20 Sep 2004 | Slight change to dedication to match Crockford entry | Graham Nabb check via e-mail |