All changes to tower
| Date | Change | Source |
|---|---|---|
| 3 Jan 2013 | Tenor wt reverted to previous value | Chris Pickford (WBF data) via pNBR |
| 1-6: wt amended; 1: diam added | Chris Pickford via 00010225 | |
| 21 Dec 2012 | Tenor wt amended (from 9-0-20) | Chris Pickford (WofA data) via pNBR |
| 2-6: wt amended, diam, canon info added; 1-6: frame id added; | Chris Pickford via 00010213 | |
| frame info added | Chris Pickford via 00010213 | |
| 24 Nov 2011 | 1-6: nominal added | David Kelly via e-mail |