All changes to tower
| Date | Change | Source |
|---|---|---|
| 29 Dec 2022 | Convert 1A and 1B to 1 and 1.1 as, whilst independent frames, they are the same collection and logically connected | |
| 15 Jul 2021 | 1-6: nominal added | Taylors records. 1 & 2 nominals pencilled in in book via Andrew Aspland |
| 18 Jan 2017 | 1-6: turning,frameid,canon info added; frame info added | John Arthur via 00011964 |
| 9 Feb 2010 | Thu PN discontinued since mid 2009 | Matthew Blurton via e-mail |
| 4 Jul 2008 | Thu PN now restarted | Matthew Blurton via e-mail |
| 25 Sep 2006 | Thu PN removed: practices discontinued ("lack of ringers") | Matthew Blurton via e-mail |