| Date | Change | Source |
|---|
| 23 Sep 2024 | 6: nominal, diameter added, note amended; 1-6: turning added | Kieran Downer, local contact. Recorded by Kieran Downer and analysed by Nick Bowden |
| 12 Sep 2024 | 5: date amended; Fr1,Fr2,Fr3: date, maker, layout added; Fr3: resultant layout added; Fr3.1 added | Information (including pictures) provided by Kieran Downer, local contact |
| 20 Jul 2024 | PN amended | Kieran Downer, local contact via REMRKS480 |
| 10 Feb 2019 | 1: wt amended; diam added | David Sloman via 00013286 |
| 16 Sep 2017 | 2-5: diam added; 5: founder amended | David Sloman via 00012434 |
| 19 Nov 2016 | 1-6: frameid added; 2-6: canon info added; | Mike Chester via 00011856 |
| fr1,fr2,fr3: material,truss added | Mike Chester via 00011856 |
| 5 Mar 2016 | Indication of toilet facility added | TimJ#217 via e-mail |
| 10 Sep 2012 | frames added | John Baldwin via database |
| 20 Nov 2006 | URL added | (Mike Chester) via pNBR |
| 15 Jul 2003 | PN no longer 1,3,5 Mondays | Steve Noyes via e-mail |