All changes to tower
| Date | Change | Source |
|---|---|---|
| 7 Feb 2024 | Fr1:layout and truss added | Bowell photograph collection via Neal Dodge |
| 3 Nov 2022 | Overhaul added | Bowell's ledger 1936 via Neal Dodge |
| 14 Nov 2013 | 1-6: frame id added; frame info added; former frame info added | Philip Denton via e-mail |
| 13 Jan 2010 | 1-6: nominal added | Nick Bowden via 00008340 |