All changes to tower
| Date | Change | Source |
|---|---|---|
| 30 Dec 2022 | Convert 1A, 1B, 1C to 1, 1.1, 1.2 as, whilst independent frames, they are the same collection and logically connected | |
| 5 Nov 2018 | 1-5,7,8: nominal added; 6: nominal amended; 2: turning amended | Chris Pickford via 00013145 |
| 27 Jul 2018 | 6: nominal added | Chris Pickford via 00012991 |
| 10 Apr 2018 | 1-8: canon info,turning,frameid added; frame info added | Chris Pickford via 00012819 |