All changes to tower
| Date | Change | Source |
|---|---|---|
| 1 Aug 2018 | frame: truss amended | Tim Jackson via e-mail |
| 8 Dec 2017 | Greenwood p84 shows tenor as 11-2-27; Dove value ex JTco.. | .. & RW1988/747 (though other wts there don't match JT) via e-mail |
| 29 Jun 2011 | 1-8: turning,frameid added; frame info added | Andrew Higson via 00009454 |
| 13 Feb 2007 | Tenor nominal added (G-18c) | Andrew Higson via pNBR |