All changes to tower
| Date | Change | Source |
|---|---|---|
| 11 Feb 2019 | partials added | Nick Bowden via e-mail |
| 26 Jun 2018 | Tenor note and ring key not D (nominal: C#+14c) | TimJ via e-mail |
| Flags added about straight line roping and sequence of fall | TimJ via e-mail | |
| 1-3: nominal,canon info,turning,frameid added; frame info added | Tim Jackson via 00012937 | |
| 10 Dec 2003 | Slight grid ref correction (from ..818) | OS map via JCB |