All changes to tower
| Date | Change | Source |
|---|---|---|
| 4 Jul 2019 | pNBR discrepancy with Bucks BB,p222 noted S | TimJ (after liaison with Matthew Smith) via pNBR |
| 4: turning amended | Tim Jackson via 00013500 | |
| 3 Jul 2019 | 1-6: nominal added | Tim Jackson via 00013493 |
| 8 Jun 2019 | 1-6: turning,frameid added; Dis: added; frame info added | John Baldwin via database |
| 3,6: canons added; 1,5: canons amended | John Baldwin via database | |
| 3 Jan 2013 | 4: wt, diam amended | Chris Pickford via 00010220 |
| 22 Dec 2012 | 4(replacement): details added | Chris Pickford via 00010216 |
| 23 Jul 2004 | Failing URL removed: freespace.virgin.net/a.telford/ | Carl Inglis - routine check via e-mail |