All changes to tower
| Date | Change | Source |
|---|---|---|
| 27 May 2020 | Tenor note & ring key not Ab (nominal: A-44c) S | Nick Bowden (C Richmond) via pNBR |
| 1-6: nominal added,note amended | Nick Bowden via 00013778 | |
| 14 Mar 2018 | 1-6: canon info,frameid added; frame info added | Mike Chester via 00012788 |