All changes to tower
| Date | Change | Source |
|---|---|---|
| 29 Dec 2017 | 1-6: nominal added | Tim Jackson via 00012683 |
| 11 Jan 2016 | 1-5: wt added; 1-6: turning,frameid added; 4-6: canons added; | Matthew Higby via 00011474 |
| 4,5: diam added; 6: diam amended; frame info added | Matthew Higby via 00011474 | |
| 25 Jan 2004 | URL changed | Gary J Sheppard: SDGR webmaster via e-mail |
| 8 Jan 2004 | URL added | Gary J Sheppard: SDGR webmaster via e-mail |