All changes to tower
| Date | Change | Source |
|---|---|---|
| 28 Nov 2023 | Frame Fr1: truss, layout added | Chris Pickford via Frame Backlog |
| 29 Nov 2021 | 1-6: turning added | CJP inspection, 28/11/21 via Chris Pickford |
| 22 Jun 2017 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 8 Apr 2009 | All nominals added | Andrew Higson via 00007241 |
| 24 Jan 2008 | PN info changed (still alternating with Cradley) | Jenny Lawrence via e-mail |
| 31 May 2006 | PN info added (alternating with Cradley) | Jane Mason, HDG Secretary via e-mail |