All changes to tower
| Date | Change | Source |
|---|---|---|
| 27 Apr 2017 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 26 Apr 2017 | Tenor weight amended (was 7-3-21) | Chris Pickford (JTco records) via pNBR |
| 2-6: nominal added; 6: wt amended | Chris Pickford via 00012111 | |
| 6 Jul 2016 | PN info added | TimJ (info: Ian Ansell) via e-mail |
| 14 Jun 2015 | PN info removed (prev: 3rd Thu) | Tim Jackson (info: Ian Ansell) via e-mail |
| 1 Dec 2007 | PN info modified | Tim Jackson#125 via e-mail |
| 15 Oct 2007 | PN info added | Aidan Hopkins via e-mail |