All changes to tower
| Date | Change | Source |
|---|---|---|
| 19 Aug 2023 | Toilet added | Neal Dodge |
| 13 Sep 2017 | 1-6: canons added; frame: material,layout,truss added | Philip Denton via 00012421 |
| 4 Jul 2016 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 30 Aug 2014 | 1-6: nominal,diam added | Tim Jackson via 00010859 |