All changes to tower
| Date | Change | Source |
|---|---|---|
| 12 Jun 2018 | fr1: frame layout added | Mike Chester via e-mail |
| 17 Oct 2013 | Tenor wt amended (was 11-0-14) | Nigel Taylor (WBF info) via pNBR |
| 1-8: wt,nominal amended; 1,5,6,7,8: diam amended | Nigel Taylor via 00010546 | |
| 21 Jul 2010 | 1-8: frameid added; frame info added | James Clarke via e-mail |
| 21 Nov 2004 | PN info added (note start time) | Wendy Campbell (GDR website) via e-mail |
| 8 Nov 2004 | Tenor nominal added | Bill Hibbert via e-mail |