All changes to tower
| Date | Change | Source |
|---|---|---|
| 15 Jun 2012 | 4: founder amended; 1-6: frame id added; frame info added | Philip Denton via e-mail |
| 22 Oct 2006 | Augmented from 5 to 6; GF added | Andrew Higson; Neil Bennett; Graham Nabb via pNBR |
| 19 Oct 2006 | Tenor not now 7.5cwt, nominal added (A+0c). Dedicn: 22/10 | Andrew Higson via pNBR |