All changes to tower
| Date | Change | Source |
|---|---|---|
| 14 Nov 2016 | 1-4: wt,nominal,diam,canons,turning,frameid added; | Philip Denton via 00011845 |
| 5: canons,turning,frameid added; nominal,diam amended; | Philip Denton via 00011845 | |
| frame info added | Philip Denton via 00011845 |