All changes to tower
| Date | Change | Source |
|---|---|---|
| 1 Dec 2025 | 1-3: nominal added | Recorded by Chris Woodcock and analysed by Nick Bowden |
| 14 Dec 2019 | Indication of available toilet facility added | TimJ (#257) via e-mail |
| 11 Jul 2017 | 1-3: frameid added; frame info added | David Sloman via e-mail |