All changes to tower
| Date | Change | Source |
|---|---|---|
| 18 Dec 2018 | fr1: date amended | Tim Jackson via e-mail |
| 13 Dec 2018 | Practice day and time amended | J Lawrence, Tower Captain via e-mail |
| 2 Sep 2016 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 31 May 2006 | PN info added | Jane Mason, HDG Secretary via e-mail |
| 7 Aug 2004 | Tenor no longer 12-3-0 in A# | Ben Kipling, HMA via e-mail |
| 16 Jul 2003 | Tenor note not A; nominal: A#-23cents | George Dawson (CB Herefs, p 108: Bb) via e-mail |