All changes to tower
| Date | Change | Source |
|---|---|---|
| 2 Mar 2024 | Frame Fr1: resultant layout added; frame Fr1.1: layout amended | Andrew Higson via Frame Backlog |
| 24 Nov 2023 | Frame Fr1: material amended; frame Fr1.1: layout added | Andrew Higson |
| 19 Oct 2018 | 1-8: frameid,turning added; frame info added | Andrew Higson via e-mail |
| 2 Feb 2007 | Tenor note not G: nominal added (Ab-33c) | Andrew Higson via pNBR |