All changes to tower
| Date | Change | Source |
|---|---|---|
| 20 Dec 2015 | 1-5: nominal added; 6: nominal amended; 1,4: welded | Tim Jackson via 00011455 |
| 22 Jul 2010 | 1,2,3,4,6: turning added | John Baldwin via database |
| 1-6: frame id added; frame info added | James Clarke via e-mail | |
| 4 Feb 2008 | Tenor note not F#; nominal: F+39c | Nick Bowden via pNBR |
| 21 Nov 2004 | PN info added | Wendy Campbell (GDR website) via e-mail |