All changes to tower
| Date | Change | Source |
|---|---|---|
| 10 Jul 2021 | URL amended | Tim Jackson |
| 9 Jul 2021 | 4: founder amended. GF noted. | R M W Clouston papers via Neal Dodge |
| 1 Sep 2017 | 1-5: canons,turning,frameid added; 1-4: (app)wt,nominal added; | Philip Denton via 00012377 |
| 1-3: diam added; 4:date amended(to app); frame info added | Philip Denton via 00012377 | |
| 5: nominal amended | Philip Denton via 00012377 |