All changes to tower
| Date | Change | Source |
|---|---|---|
| 16 May 2021 | Ellacombe apparatus noted | Ollie Watson |
| 25 Oct 2019 | 1-10: partials added | Tim Jackson via e-mail |
| 12 Oct 2019 | 1-10: nominal added | Tim Jackson via e-mail |
| 13 Jan 2018 | 1-10: frameid added; fr1,fr2,fr3: date,maker added | [James Hedgcock] via e-mail |
| 13 Jul 2017 | frame info added | David Sloman via e-mail |
| 21 Feb 2010 | URL removed | David Bryant via e-mail |
| 10 Feb 2005 | URL amended | David Bryant (Nabbers' digest 1099#2) via e-mail |
| 17 Jul 2003 | URL added | D Bryant's Norwich website via www |