All changes to tower
| Date | Change | Source |
|---|---|---|
| 9 Dec 2014 | 4: approx date added | Richard Offen via 00011011 |
| 5: turning added | John Baldwin via database | |
| 8 Dec 2014 | 1-6: nominal,diam added | Tim Jackson via 00011010 |
| 28 Feb 2011 | Thu PN now only 3rd (prev: 1,3) | Tim Jackson (info: tower website) via e-mail |
| 13 Feb 2011 | 1-6: frame id added; frame info added | Mike Chester via 00009123 |
| 11 Jun 2007 | URL added | Mike Chester via pNBR |