All changes to tower
| Date | Change | Source |
|---|---|---|
| 15 May 2019 | Discrepancy wrt Smith (Bucks BB) re wt of sanctus flagged | TimJ via JCB |
| 22 Apr 2019 | 1-6: turning added; fr1: truss added | John Baldwin via database |
| 23 Mar 2011 | Sct: wt amended,note added; all: canon info,frameid added; | Philip Denton via e-mail |
| frame info added | Philip Denton via e-mail | |
| 21 Sep 2004 | Slight change to dedication to match Crockford entry | Graham Nabb check via e-mail |