All changes to tower
| Date | Change | Source |
|---|---|---|
| 14 Aug 2022 | Fr1: Truss added | Ranald Clouston papers 1974 via Neal Dodge |
| 30 Sep 2015 | URL removed: www.hollesley.com/ - no connection | Xenu check via URLbad |
| 4 May 2011 | 1-8: frame id added; frame info added | Philip Denton via 00009293 |
| 12 Apr 2006 | Taylor precise wt is not 17-0-11; nominal (F-19c) added | Andrew Higson via e-mail |