All changes to tower
| Date | Change | Source |
|---|---|---|
| 6 Jan 2023 | Overhaul added | The Bury and Norwich Post, 22 Mar 1898, Tue p8 via Neal Dodge |
| 1 Sep 2017 | 1-5: nominal,canons,turning,frameid added; 1,5: diam added; | Philip Denton via 00012383 |
| 1-4: (app)wt added; 1: date amended; frame info added | Philip Denton via 00012383 | |
| 20 Sep 2004 | Revised estimate for tenor wt (from 15.25cwt) | Tim Jackson#69 (info ex Alan Moult) via e-mail |