All changes to tower
| Date | Change | Source |
|---|---|---|
| 14 Nov 2016 | fr1: maker added | Nick Churchman via e-mail |
| 13 Nov 2016 | 1: frameid amended; fr1: date,material amended | Nick Churchman via e-mail |
| 12 Nov 2016 | 1-6: frameid added; frame info added | John Baldwin via database |
| 23 Jan 2007 | Tenor nominal added (F#-45c) | Andrew Higson via pNBR |