All changes to tower
| Date | Change | Source |
|---|---|---|
| 7 Mar 2023 | Frame Fr1: maker added | Matthew Higby |
| 4 Oct 2017 | 5: wt amended (9-2-0 was pre canon rmvl) | Chris Pickford via 00012478 |
| 19 Jan 2016 | 1-6: nominal added | Chris Pickford via 00011479 |
| 24 Dec 2015 | 1-6: frameid,turning added; frame info added | Chris Pickford via e-mail |
| 21 Dec 2015 | all: canons added; 1-5 diam,wt added; 3,4: date,founder amended | Chris Pickford via 00011457 |
| 6: diam amended; clk:wt,diam added | Chris Pickford via e-mail | |
| 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 |