All changes to tower
| Date | Change | Source |
|---|---|---|
| 25 Jun 2017 | 1-4: turning,frameid added; frame info added | Tim Jackson via 00012258 |
| 12 May 2014 | Placename amended to match OS map | TimJ#199 (info: Susan Marshall) via e-mail |
| 16 Jul 2012 | 1-4: nominal, canon info added | Nick Bowden via 00009995 |