All changes to tower
| Date | Change | Source |
|---|---|---|
| 9 Jun 2015 | all: turning added; 1,2: canon info amended; frame: truss added | Mark Walker via 00011215 |
| 20 Mar 2014 | 1-8: frame id added; 4-8: historically important | John Baldwin via database |
| 27 Mar 2007 | Tenor nominal added (F#+27c) | Mark Walker via pNBR |