All changes to tower
| Date | Change | Source |
|---|---|---|
| 31 Jan 2025 | HCACR URL amended | Lucas Williams, HCACR Web Master |
| 30 Oct 2017 | all: turning added; fr1: truss added | Matthew Higby via 00012537 |
| 18 Jul 2015 | all: frameid added; frame info added | Matthew Higby via e-mail |
| 20 Feb 2012 | Sct: historically important | David Knight via e-mail |
| 1 Jan 2004 | Augmented from 3 to 6 (ie, a 'new' ring for 'main list') | Matthew Higby via e-mail |