All changes to tower
| Date | Change | Source |
|---|---|---|
| 29 Nov 2010 | 1-8: turning, frame id added; 8: canons added; frame info added | Andrew Higson via 00008968 |
| 24 Jan 2008 | PN alternates with Mathon | Jenny Lawrence via e-mail |
| 6 Oct 2006 | Tenor nominal added (F#+23c) | Andrew Higson via pNBR |
| 23 Sep 2004 | Slight change to dedication to match Crockford entry | Graham Nabb check via e-mail |