All changes to tower
| Date | Change | Source |
|---|---|---|
| 10 Mar 2016 | fr1: date(app),layout added | David Sloman via e-mail |
| 15 Sep 2009 | Tenor weight is exact not approx | Andrew Higson via pNBR |
| 1-4: nominal, turning, frame id added; 3,4: wt is exact not app | Andrew Higson via 00008105 | |
| 27 May 2009 | 4: founder amended | George Dawson via e-mail |