All changes to tower
| Date | Change | Source |
|---|---|---|
| 8 Dec 2022 | 8: weight amended S | Whitechapel records via David Sloman #004220 |
| 10 Aug 2021 | Ellacombe apparatus noted | Neal Dodge |
| 27 Feb 2020 | fr1: truss,layout added | Tim Jackson via e-mail |
| 5 Feb 2020 | URL amended | TimJ (#263) via URLbad |
| 27 Nov 2013 | 1-8: turning,nominal added; Sct: turning added | Dickon Love via 00010572 |
| 16 May 2012 | all: canon info, frame id added; frame info added | Garry Barr via 00009935 |
| fr1: date, maker added | John Baldwin via database | |
| 21 Jul 2008 | PN start time added | John Adams via e-mail |
| 17 Oct 2006 | URL added | Dickon Love via e-mail |
| 1 Dec 2003 | Postal area removed (unnecessary) | via JCB |