All changes to tower
| Date | Change | Source |
|---|---|---|
| 8 Nov 2016 | 3: canon info added | David Sloman via 00011834 |
| 22 Feb 2016 | Installation noted as being derelict | JRK (LBBF, 2009, p83f) via JCB |
| 1,2,3: frameid added; frame info added | David Sloman via e-mail | |
| 19 Feb 2016 | Tenor note amended (from A); nominal: Ab-22c | John Greenhough (GAD NBR spsht) via pNBR |
| 1,2,3: nominal added | John Greenhough via 00011511 | |
| 13 Oct 2011 | 2:canon info added; historically important | David Knight via e-mail |
| 6 Oct 2004 | Tuning info added | Nick Bowden#46 (CB Lincs p80) via e-mail |