All changes to tower
| Date | Change | Source |
|---|---|---|
| 10 Oct 2017 | 1-5: frameid added; frame info added | David Sloman via e-mail |
| 23 Jul 2006 | Tenor nominal added (D+23c) | Christopher Dalton (Dorset, p680) via pNBR |
| 25 Jan 2004 | URL changed | Gary J Sheppard: SDGR webmaster via e-mail |
| 8 Jan 2004 | URL added | Gary J Sheppard: SDGR webmaster via e-mail |