All changes to tower
| Date | Change | Source |
|---|---|---|
| 3 Aug 2020 | 1-6: turning added; fr1: date,maker,truss,layout added | Tim Jackson via e-mail |
| 23 Oct 2017 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 6 Apr 2014 | PN info added | TimJ#198 via e-mail |
| 26 Jun 2006 | PN info (Wed) removed | John Cater via e-mail |