All changes to tower
| Date | Change | Source |
|---|---|---|
| 24 Feb 2019 | 5: wt amended; Sct: (app) wt added | Chris Pickford via 00013315 |
| 23 Feb 2019 | 1,4: wt amended | Chris Pickford via e-mail |
| 22 Feb 2019 | 1,2: diam added | David Sloman via 00013314 |
| 22 Nov 2012 | frame: maker amended | Mike Chester via e-mail |
| 21 Nov 2012 | 1-6: frameid added; 4,5,6,Sct: canon info added | Mike Chester via 00010150 |
| 20 Nov 2012 | PN added; URL added | Tower website via www |
| Sct: frameid added | John Baldwin via database |