All changes to tower
| Date | Change | Source |
|---|---|---|
| 6 Mar 2020 | 1-3: nominal,note,turning added; fr1: layout added | Tim Jackson via 00013641 |
| Tenor note added S | TimJ (#268) via pNBR | |
| 2 Sep 2017 | 1-3: frameid added; frame info added | David Sloman via e-mail |
| 2 Dec 2003 | Additional tower | John Cater via e-mail |