All changes to tower
| Date | Change | Source |
|---|---|---|
| 30 Dec 2011 | 1-5: canon info, frame id added; frame info added | John Baldwin via database |
| 15 Jun 2011 | 3: details added | Chris Pickford via 00009414 |
| 12 Jun 2009 | 1,2,5: founder amended (to L&J but 'by JT&Co') | John Baldwin via database |
| 11 Oct 2004 | Slight dedication change to match Crockford | Graham Nabb check via e-mail |