All changes to tower
| Date | Change | Source |
|---|---|---|
| 26 May 2025 | 1-6: nominal added; ring key changed | Luca Greenslade, personal visit (24/03/2025) via #008663 |
| 16 Jul 2017 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 24 May 2008 | PN info added | SCA 2007 Report via JCB |