All changes to tower
| Date | Change | Source |
|---|---|---|
| 12 Feb 2024 | Frame Fr1: truss added; Unused: nominal added | Kye Leaver #006469 |
| 22 Apr 2013 | all: frame id, canon info added; 1-5: diam added; | Mike Chester via 00010360 |
| 1-6: turning added; frame info added | Mike Chester via 00010360 | |
| 25 Apr 2009 | Dis: historically important | John Baldwin via database |
| 24 May 2008 | Thu PN detail amended (2,4,5 added) | SCA 2007 Report via JCB |