All changes to tower
| Date | Change | Source |
|---|---|---|
| 12 Oct 2019 | 1-6: frameid added | Tim Jackson via e-mail |
| 20 Dec 2012 | 1-5: diam added; 6: diam amended; frame info added | Chris Pickford via 00010199 |
| 9 Feb 2010 | 6: canon info amended | Andrew Higson via e-mail |
| 12 Dec 2005 | Tenor nominal (=B-15c) added | Nick Bowden#58 via e-mail |
| 12 Feb 2005 | URL added | Roger Bailey's webpages via www |
| 4 May 2003 | Dedication is not LaUrence | Crockford via JCB |