All changes to tower
| Date | Change | Source |
|---|---|---|
| 22 Nov 2008 | Precise tenor wt supplied | Chris Pickford via pNBR |
| 9 Mar 2007 | u/r added; tenor wt (~3 cwt) added | Paul Cattermole via e-mail |
| 23 Feb 2004 | Tenor wt estimate supplied (shown as precise for prev wk) | Paul Cattermole (via Tim Jackson) via e-mail |
| 9 Dec 2003 | Additional tower; Crockford & OS checked | Colin Turner's 3-bell lists via JCB |